ICD-10 · PDGM grouping
M1A Chronic gout
All 242 codes in the M1A family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
242
Can lead a claim
162
Cannot lead a claim
80
What CMS assigns to M1A
162 of the 242 codes group to Musculoskeletal Rehabilitation; 80 are assigned no clinical group. None of the 242 is assigned a comorbidity subgroup. 162 of the 242 can lead a claim. CMS attaches a code-first note to 144 of the 242.
Code first
CMS grouper convention 12, on M1A.30X0, M1A.30X1, M1A.3110, M1A.3111, M1A.3120, M1A.3121, M1A.3190, M1A.3191, M1A.3210, M1A.3211, M1A.3220, M1A.3221, M1A.3290, M1A.3291, M1A.3310, M1A.3311, M1A.3320, M1A.3321, M1A.3390, M1A.3391, M1A.3410, M1A.3411, M1A.3420, M1A.3421, M1A.3490, M1A.3491, M1A.3510, M1A.3511, M1A.3520, M1A.3521, M1A.3590, M1A.3591, M1A.3610, M1A.3611, M1A.3620, M1A.3621, M1A.3690, M1A.3691, M1A.3710, M1A.3711, M1A.3720, M1A.3721, M1A.3790, M1A.3791, M1A.38X0, M1A.38X1, M1A.39X0, M1A.39X1, M1A.40X0, M1A.40X1, M1A.4110, M1A.4111, M1A.4120, M1A.4121, M1A.4190, M1A.4191, M1A.4210, M1A.4211, M1A.4220, M1A.4221, M1A.4290, M1A.4291, M1A.4310, M1A.4311, M1A.4320, M1A.4321, M1A.4390, M1A.4391, M1A.4410, M1A.4411, M1A.4420, M1A.4421, M1A.4490, M1A.4491, M1A.4510, M1A.4511, M1A.4520, M1A.4521, M1A.4590, M1A.4591, M1A.4610, M1A.4611, M1A.4620, M1A.4621, M1A.4690, M1A.4691, M1A.4710, M1A.4711, M1A.4720, M1A.4721, M1A.4790, M1A.4791, M1A.48X0, M1A.48X1, M1A.49X0, M1A.49X1. Code first:
- underlying disease
CMS grouper convention 115, on M1A.10X0, M1A.10X1, M1A.1110, M1A.1111, M1A.1120, M1A.1121, M1A.1190, M1A.1191, M1A.1210, M1A.1211, M1A.1220, M1A.1221, M1A.1290, M1A.1291, M1A.1310, M1A.1311, M1A.1320, M1A.1321, M1A.1390, M1A.1391, M1A.1410, M1A.1411, M1A.1420, M1A.1421, M1A.1490, M1A.1491, M1A.1510, M1A.1511, M1A.1520, M1A.1521, M1A.1590, M1A.1591, M1A.1610, M1A.1611, M1A.1620, M1A.1621, M1A.1690, M1A.1691, M1A.1710, M1A.1711, M1A.1720, M1A.1721, M1A.1790, M1A.1791, M1A.18X0, M1A.18X1, M1A.19X0, M1A.19X1. Code first:
- toxic effects of lead and its compounds (T56.0-)
Every code in M1A
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| M1A.0 Idiopathic chronic gout | ||||
| M1A.00 Idiopathic chronic gout, unspecified site | ||||
| M1A.00X0 | Idiopathic chronic gout, unspecified site, without tophus (tophi)CMS: Idiopathic chronic gout, unspecified site, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.00X1 | Idiopathic chronic gout, unspecified site, with tophus (tophi)CMS: Idiopathic chronic gout, unspecified site, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.01 Idiopathic chronic gout, shoulder | ||||
| M1A.011 Idiopathic chronic gout, right shoulder | ||||
| M1A.0110 | Idiopathic chronic gout, right shoulder, without tophus (tophi)CMS: Idiopathic chronic gout, right shoulder, without tophus | Can lead a claim | E | None |
| M1A.0111 | Idiopathic chronic gout, right shoulder, with tophus (tophi) | Can lead a claim | E | None |
| M1A.012 Idiopathic chronic gout, left shoulder | ||||
| M1A.0120 | Idiopathic chronic gout, left shoulder, without tophus (tophi)CMS: Idiopathic chronic gout, left shoulder, without tophus | Can lead a claim | E | None |
| M1A.0121 | Idiopathic chronic gout, left shoulder, with tophus (tophi) | Can lead a claim | E | None |
| M1A.019 Idiopathic chronic gout, unspecified shoulder | ||||
| M1A.0190 | Idiopathic chronic gout, unspecified shoulder, without tophus (tophi)CMS: Idiopathic chronic gout, unsp shoulder, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.0191 | Idiopathic chronic gout, unspecified shoulder, with tophus (tophi)CMS: Idiopathic chronic gout, unspecified shoulder, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.02 Idiopathic chronic gout, elbow | ||||
| M1A.021 Idiopathic chronic gout, right elbow | ||||
| M1A.0210 | Idiopathic chronic gout, right elbow, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0211 | Idiopathic chronic gout, right elbow, with tophus (tophi) | Can lead a claim | E | None |
| M1A.022 Idiopathic chronic gout, left elbow | ||||
| M1A.0220 | Idiopathic chronic gout, left elbow, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0221 | Idiopathic chronic gout, left elbow, with tophus (tophi) | Can lead a claim | E | None |
| M1A.029 Idiopathic chronic gout, unspecified elbow | ||||
| M1A.0290 | Idiopathic chronic gout, unspecified elbow, without tophus (tophi)CMS: Idiopathic chronic gout, unspecified elbow, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.0291 | Idiopathic chronic gout, unspecified elbow, with tophus (tophi)CMS: Idiopathic chronic gout, unspecified elbow, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.03 Idiopathic chronic gout, wrist | ||||
| M1A.031 Idiopathic chronic gout, right wrist | ||||
| M1A.0310 | Idiopathic chronic gout, right wrist, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0311 | Idiopathic chronic gout, right wrist, with tophus (tophi) | Can lead a claim | E | None |
| M1A.032 Idiopathic chronic gout, left wrist | ||||
| M1A.0320 | Idiopathic chronic gout, left wrist, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0321 | Idiopathic chronic gout, left wrist, with tophus (tophi) | Can lead a claim | E | None |
| M1A.039 Idiopathic chronic gout, unspecified wrist | ||||
| M1A.0390 | Idiopathic chronic gout, unspecified wrist, without tophus (tophi)CMS: Idiopathic chronic gout, unspecified wrist, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.0391 | Idiopathic chronic gout, unspecified wrist, with tophus (tophi)CMS: Idiopathic chronic gout, unspecified wrist, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.04 Idiopathic chronic gout, hand | ||||
| M1A.041 Idiopathic chronic gout, right hand | ||||
| M1A.0410 | Idiopathic chronic gout, right hand, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0411 | Idiopathic chronic gout, right hand, with tophus (tophi) | Can lead a claim | E | None |
| M1A.042 Idiopathic chronic gout, left hand | ||||
| M1A.0420 | Idiopathic chronic gout, left hand, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0421 | Idiopathic chronic gout, left hand, with tophus (tophi) | Can lead a claim | E | None |
| M1A.049 Idiopathic chronic gout, unspecified hand | ||||
| M1A.0490 | Idiopathic chronic gout, unspecified hand, without tophus (tophi)CMS: Idiopathic chronic gout, unspecified hand, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.0491 | Idiopathic chronic gout, unspecified hand, with tophus (tophi)CMS: Idiopathic chronic gout, unspecified hand, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.05 Idiopathic chronic gout, hip | ||||
| M1A.051 Idiopathic chronic gout, right hip | ||||
| M1A.0510 | Idiopathic chronic gout, right hip, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0511 | Idiopathic chronic gout, right hip, with tophus (tophi) | Can lead a claim | E | None |
| M1A.052 Idiopathic chronic gout, left hip | ||||
| M1A.0520 | Idiopathic chronic gout, left hip, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0521 | Idiopathic chronic gout, left hip, with tophus (tophi) | Can lead a claim | E | None |
| M1A.059 Idiopathic chronic gout, unspecified hip | ||||
| M1A.0590 | Idiopathic chronic gout, unspecified hip, without tophus (tophi)CMS: Idiopathic chronic gout, unspecified hip, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.0591 | Idiopathic chronic gout, unspecified hip, with tophus (tophi)CMS: Idiopathic chronic gout, unspecified hip, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.06 Idiopathic chronic gout, knee | ||||
| M1A.061 Idiopathic chronic gout, right knee | ||||
| M1A.0610 | Idiopathic chronic gout, right knee, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0611 | Idiopathic chronic gout, right knee, with tophus (tophi) | Can lead a claim | E | None |
| M1A.062 Idiopathic chronic gout, left knee | ||||
| M1A.0620 | Idiopathic chronic gout, left knee, without tophus (tophi) | Can lead a claim | E | None |
| M1A.0621 | Idiopathic chronic gout, left knee, with tophus (tophi) | Can lead a claim | E | None |
| M1A.069 Idiopathic chronic gout, unspecified knee | ||||
| M1A.0690 | Idiopathic chronic gout, unspecified knee, without tophus (tophi)CMS: Idiopathic chronic gout, unspecified knee, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.0691 | Idiopathic chronic gout, unspecified knee, with tophus (tophi)CMS: Idiopathic chronic gout, unspecified knee, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.07 Idiopathic chronic gout, ankle and foot | ||||
| M1A.071 Idiopathic chronic gout, right ankle and foot | ||||
| M1A.0710 | Idiopathic chronic gout, right ankle and foot, without tophus (tophi)CMS: Idiopathic chronic gout, right ankle and foot, w/o tophus | Can lead a claim | E | None |
| M1A.0711 | Idiopathic chronic gout, right ankle and foot, with tophus (tophi)CMS: Idiopathic chronic gout, right ankle and foot, with tophus | Can lead a claim | E | None |
| M1A.072 Idiopathic chronic gout, left ankle and foot | ||||
| M1A.0720 | Idiopathic chronic gout, left ankle and foot, without tophus (tophi)CMS: Idiopathic chronic gout, left ankle and foot, without tophus | Can lead a claim | E | None |
| M1A.0721 | Idiopathic chronic gout, left ankle and foot, with tophus (tophi)CMS: Idiopathic chronic gout, left ankle and foot, with tophus | Can lead a claim | E | None |
| M1A.079 Idiopathic chronic gout, unspecified ankle and foot | ||||
| M1A.0790 | Idiopathic chronic gout, unspecified ankle and foot, without tophus (tophi)CMS: Idiopathic chronic gout, unsp ankle and foot, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.0791 | Idiopathic chronic gout, unspecified ankle and foot, with tophus (tophi)CMS: Idiopathic chronic gout, unsp ankle and foot, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.08 Idiopathic chronic gout, vertebrae | ||||
| M1A.08X0 | Idiopathic chronic gout, vertebrae, without tophus (tophi) | Can lead a claim | E | None |
| M1A.08X1 | Idiopathic chronic gout, vertebrae, with tophus (tophi) | Can lead a claim | E | None |
| M1A.09 Idiopathic chronic gout, multiple sites | ||||
| M1A.09X0 | Idiopathic chronic gout, multiple sites, without tophus (tophi)CMS: Idiopathic chronic gout, multiple sites, without tophus | Can lead a claim | E | None |
| M1A.09X1 | Idiopathic chronic gout, multiple sites, with tophus (tophi) | Can lead a claim | E | None |
| M1A.1 Lead-induced chronic gout | ||||
| M1A.10 Lead-induced chronic gout, unspecified site | ||||
| M1A.10X0 | Lead-induced chronic gout, unspecified site, without tophus (tophi)CMS: Lead-induced chronic gout, unspecified site, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.10X1 | Lead-induced chronic gout, unspecified site, with tophus (tophi)CMS: Lead-induced chronic gout, unspecified site, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.11 Lead-induced chronic gout, shoulder | ||||
| M1A.111 Lead-induced chronic gout, right shoulder | ||||
| M1A.1110 | Lead-induced chronic gout, right shoulder, without tophus (tophi)CMS: Lead-induced chronic gout, right shoulder, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1111 | Lead-induced chronic gout, right shoulder, with tophus (tophi)CMS: Lead-induced chronic gout, right shoulder, with tophus | Can lead a claim, code first applies | E | None |
| M1A.112 Lead-induced chronic gout, left shoulder | ||||
| M1A.1120 | Lead-induced chronic gout, left shoulder, without tophus (tophi)CMS: Lead-induced chronic gout, left shoulder, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1121 | Lead-induced chronic gout, left shoulder, with tophus (tophi)CMS: Lead-induced chronic gout, left shoulder, with tophus | Can lead a claim, code first applies | E | None |
| M1A.119 Lead-induced chronic gout, unspecified shoulder | ||||
| M1A.1190 | Lead-induced chronic gout, unspecified shoulder, without tophus (tophi)CMS: Lead-induced chronic gout, unsp shoulder, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.1191 | Lead-induced chronic gout, unspecified shoulder, with tophus (tophi)CMS: Lead-induced chronic gout, unspecified shoulder, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.12 Lead-induced chronic gout, elbow | ||||
| M1A.121 Lead-induced chronic gout, right elbow | ||||
| M1A.1210 | Lead-induced chronic gout, right elbow, without tophus (tophi)CMS: Lead-induced chronic gout, right elbow, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1211 | Lead-induced chronic gout, right elbow, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.122 Lead-induced chronic gout, left elbow | ||||
| M1A.1220 | Lead-induced chronic gout, left elbow, without tophus (tophi)CMS: Lead-induced chronic gout, left elbow, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1221 | Lead-induced chronic gout, left elbow, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.129 Lead-induced chronic gout, unspecified elbow | ||||
| M1A.1290 | Lead-induced chronic gout, unspecified elbow, without tophus (tophi)CMS: Lead-induced chronic gout, unspecified elbow, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.1291 | Lead-induced chronic gout, unspecified elbow, with tophus (tophi)CMS: Lead-induced chronic gout, unspecified elbow, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.13 Lead-induced chronic gout, wrist | ||||
| M1A.131 Lead-induced chronic gout, right wrist | ||||
| M1A.1310 | Lead-induced chronic gout, right wrist, without tophus (tophi)CMS: Lead-induced chronic gout, right wrist, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1311 | Lead-induced chronic gout, right wrist, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.132 Lead-induced chronic gout, left wrist | ||||
| M1A.1320 | Lead-induced chronic gout, left wrist, without tophus (tophi)CMS: Lead-induced chronic gout, left wrist, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1321 | Lead-induced chronic gout, left wrist, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.139 Lead-induced chronic gout, unspecified wrist | ||||
| M1A.1390 | Lead-induced chronic gout, unspecified wrist, without tophus (tophi)CMS: Lead-induced chronic gout, unspecified wrist, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.1391 | Lead-induced chronic gout, unspecified wrist, with tophus (tophi)CMS: Lead-induced chronic gout, unspecified wrist, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.14 Lead-induced chronic gout, hand | ||||
| M1A.141 Lead-induced chronic gout, right hand | ||||
| M1A.1410 | Lead-induced chronic gout, right hand, without tophus (tophi)CMS: Lead-induced chronic gout, right hand, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1411 | Lead-induced chronic gout, right hand, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.142 Lead-induced chronic gout, left hand | ||||
| M1A.1420 | Lead-induced chronic gout, left hand, without tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.1421 | Lead-induced chronic gout, left hand, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.149 Lead-induced chronic gout, unspecified hand | ||||
| M1A.1490 | Lead-induced chronic gout, unspecified hand, without tophus (tophi)CMS: Lead-induced chronic gout, unspecified hand, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.1491 | Lead-induced chronic gout, unspecified hand, with tophus (tophi)CMS: Lead-induced chronic gout, unspecified hand, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.15 Lead-induced chronic gout, hip | ||||
| M1A.151 Lead-induced chronic gout, right hip | ||||
| M1A.1510 | Lead-induced chronic gout, right hip, without tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.1511 | Lead-induced chronic gout, right hip, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.152 Lead-induced chronic gout, left hip | ||||
| M1A.1520 | Lead-induced chronic gout, left hip, without tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.1521 | Lead-induced chronic gout, left hip, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.159 Lead-induced chronic gout, unspecified hip | ||||
| M1A.1590 | Lead-induced chronic gout, unspecified hip, without tophus (tophi)CMS: Lead-induced chronic gout, unspecified hip, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.1591 | Lead-induced chronic gout, unspecified hip, with tophus (tophi)CMS: Lead-induced chronic gout, unspecified hip, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.16 Lead-induced chronic gout, knee | ||||
| M1A.161 Lead-induced chronic gout, right knee | ||||
| M1A.1610 | Lead-induced chronic gout, right knee, without tophus (tophi)CMS: Lead-induced chronic gout, right knee, without tophus | Can lead a claim, code first applies | E | None |
| M1A.1611 | Lead-induced chronic gout, right knee, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.162 Lead-induced chronic gout, left knee | ||||
| M1A.1620 | Lead-induced chronic gout, left knee, without tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.1621 | Lead-induced chronic gout, left knee, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.169 Lead-induced chronic gout, unspecified knee | ||||
| M1A.1690 | Lead-induced chronic gout, unspecified knee, without tophus (tophi)CMS: Lead-induced chronic gout, unspecified knee, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.1691 | Lead-induced chronic gout, unspecified knee, with tophus (tophi)CMS: Lead-induced chronic gout, unspecified knee, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.17 Lead-induced chronic gout, ankle and foot | ||||
| M1A.171 Lead-induced chronic gout, right ankle and foot | ||||
| M1A.1710 | Lead-induced chronic gout, right ankle and foot, without tophus (tophi)CMS: Lead-induced chronic gout, right ankle and foot, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.1711 | Lead-induced chronic gout, right ankle and foot, with tophus (tophi)CMS: Lead-induced chronic gout, right ankle and foot, with tophus | Can lead a claim, code first applies | E | None |
| M1A.172 Lead-induced chronic gout, left ankle and foot | ||||
| M1A.1720 | Lead-induced chronic gout, left ankle and foot, without tophus (tophi)CMS: Lead-induced chronic gout, left ankle and foot, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.1721 | Lead-induced chronic gout, left ankle and foot, with tophus (tophi)CMS: Lead-induced chronic gout, left ankle and foot, with tophus | Can lead a claim, code first applies | E | None |
| M1A.179 Lead-induced chronic gout, unspecified ankle and foot | ||||
| M1A.1790 | Lead-induced chronic gout, unspecified ankle and foot, without tophus (tophi)CMS: Lead-induced chronic gout, unsp ankle and foot, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.1791 | Lead-induced chronic gout, unspecified ankle and foot, with tophus (tophi)CMS: Lead-induced chronic gout, unsp ankle and foot, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.18 Lead-induced chronic gout, vertebrae | ||||
| M1A.18X0 | Lead-induced chronic gout, vertebrae, without tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.18X1 | Lead-induced chronic gout, vertebrae, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.19 Lead-induced chronic gout, multiple sites | ||||
| M1A.19X0 | Lead-induced chronic gout, multiple sites, without tophus (tophi)CMS: Lead-induced chronic gout, multiple sites, without tophus | Can lead a claim, code first applies | E | None |
| M1A.19X1 | Lead-induced chronic gout, multiple sites, with tophus (tophi)CMS: Lead-induced chronic gout, multiple sites, with tophus | Can lead a claim, code first applies | E | None |
| M1A.2 Drug-induced chronic gout | ||||
| M1A.20 Drug-induced chronic gout, unspecified site | ||||
| M1A.20X0 | Drug-induced chronic gout, unspecified site, without tophus (tophi)CMS: Drug-induced chronic gout, unspecified site, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.20X1 | Drug-induced chronic gout, unspecified site, with tophus (tophi)CMS: Drug-induced chronic gout, unspecified site, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.21 Drug-induced chronic gout, shoulder | ||||
| M1A.211 Drug-induced chronic gout, right shoulder | ||||
| M1A.2110 | Drug-induced chronic gout, right shoulder, without tophus (tophi)CMS: Drug-induced chronic gout, right shoulder, without tophus | Can lead a claim | E | None |
| M1A.2111 | Drug-induced chronic gout, right shoulder, with tophus (tophi)CMS: Drug-induced chronic gout, right shoulder, with tophus | Can lead a claim | E | None |
| M1A.212 Drug-induced chronic gout, left shoulder | ||||
| M1A.2120 | Drug-induced chronic gout, left shoulder, without tophus (tophi)CMS: Drug-induced chronic gout, left shoulder, without tophus | Can lead a claim | E | None |
| M1A.2121 | Drug-induced chronic gout, left shoulder, with tophus (tophi)CMS: Drug-induced chronic gout, left shoulder, with tophus | Can lead a claim | E | None |
| M1A.219 Drug-induced chronic gout, unspecified shoulder | ||||
| M1A.2190 | Drug-induced chronic gout, unspecified shoulder, without tophus (tophi)CMS: Drug-induced chronic gout, unsp shoulder, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.2191 | Drug-induced chronic gout, unspecified shoulder, with tophus (tophi)CMS: Drug-induced chronic gout, unspecified shoulder, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.22 Drug-induced chronic gout, elbow | ||||
| M1A.221 Drug-induced chronic gout, right elbow | ||||
| M1A.2210 | Drug-induced chronic gout, right elbow, without tophus (tophi)CMS: Drug-induced chronic gout, right elbow, without tophus | Can lead a claim | E | None |
| M1A.2211 | Drug-induced chronic gout, right elbow, with tophus (tophi) | Can lead a claim | E | None |
| M1A.222 Drug-induced chronic gout, left elbow | ||||
| M1A.2220 | Drug-induced chronic gout, left elbow, without tophus (tophi)CMS: Drug-induced chronic gout, left elbow, without tophus | Can lead a claim | E | None |
| M1A.2221 | Drug-induced chronic gout, left elbow, with tophus (tophi) | Can lead a claim | E | None |
| M1A.229 Drug-induced chronic gout, unspecified elbow | ||||
| M1A.2290 | Drug-induced chronic gout, unspecified elbow, without tophus (tophi)CMS: Drug-induced chronic gout, unspecified elbow, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.2291 | Drug-induced chronic gout, unspecified elbow, with tophus (tophi)CMS: Drug-induced chronic gout, unspecified elbow, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.23 Drug-induced chronic gout, wrist | ||||
| M1A.231 Drug-induced chronic gout, right wrist | ||||
| M1A.2310 | Drug-induced chronic gout, right wrist, without tophus (tophi)CMS: Drug-induced chronic gout, right wrist, without tophus | Can lead a claim | E | None |
| M1A.2311 | Drug-induced chronic gout, right wrist, with tophus (tophi) | Can lead a claim | E | None |
| M1A.232 Drug-induced chronic gout, left wrist | ||||
| M1A.2320 | Drug-induced chronic gout, left wrist, without tophus (tophi)CMS: Drug-induced chronic gout, left wrist, without tophus | Can lead a claim | E | None |
| M1A.2321 | Drug-induced chronic gout, left wrist, with tophus (tophi) | Can lead a claim | E | None |
| M1A.239 Drug-induced chronic gout, unspecified wrist | ||||
| M1A.2390 | Drug-induced chronic gout, unspecified wrist, without tophus (tophi)CMS: Drug-induced chronic gout, unspecified wrist, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.2391 | Drug-induced chronic gout, unspecified wrist, with tophus (tophi)CMS: Drug-induced chronic gout, unspecified wrist, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.24 Drug-induced chronic gout, hand | ||||
| M1A.241 Drug-induced chronic gout, right hand | ||||
| M1A.2410 | Drug-induced chronic gout, right hand, without tophus (tophi)CMS: Drug-induced chronic gout, right hand, without tophus | Can lead a claim | E | None |
| M1A.2411 | Drug-induced chronic gout, right hand, with tophus (tophi) | Can lead a claim | E | None |
| M1A.242 Drug-induced chronic gout, left hand | ||||
| M1A.2420 | Drug-induced chronic gout, left hand, without tophus (tophi) | Can lead a claim | E | None |
| M1A.2421 | Drug-induced chronic gout, left hand, with tophus (tophi) | Can lead a claim | E | None |
| M1A.249 Drug-induced chronic gout, unspecified hand | ||||
| M1A.2490 | Drug-induced chronic gout, unspecified hand, without tophus (tophi)CMS: Drug-induced chronic gout, unspecified hand, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.2491 | Drug-induced chronic gout, unspecified hand, with tophus (tophi)CMS: Drug-induced chronic gout, unspecified hand, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.25 Drug-induced chronic gout, hip | ||||
| M1A.251 Drug-induced chronic gout, right hip | ||||
| M1A.2510 | Drug-induced chronic gout, right hip, without tophus (tophi) | Can lead a claim | E | None |
| M1A.2511 | Drug-induced chronic gout, right hip, with tophus (tophi) | Can lead a claim | E | None |
| M1A.252 Drug-induced chronic gout, left hip | ||||
| M1A.2520 | Drug-induced chronic gout, left hip, without tophus (tophi) | Can lead a claim | E | None |
| M1A.2521 | Drug-induced chronic gout, left hip, with tophus (tophi) | Can lead a claim | E | None |
| M1A.259 Drug-induced chronic gout, unspecified hip | ||||
| M1A.2590 | Drug-induced chronic gout, unspecified hip, without tophus (tophi)CMS: Drug-induced chronic gout, unspecified hip, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.2591 | Drug-induced chronic gout, unspecified hip, with tophus (tophi)CMS: Drug-induced chronic gout, unspecified hip, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.26 Drug-induced chronic gout, knee | ||||
| M1A.261 Drug-induced chronic gout, right knee | ||||
| M1A.2610 | Drug-induced chronic gout, right knee, without tophus (tophi)CMS: Drug-induced chronic gout, right knee, without tophus | Can lead a claim | E | None |
| M1A.2611 | Drug-induced chronic gout, right knee, with tophus (tophi) | Can lead a claim | E | None |
| M1A.262 Drug-induced chronic gout, left knee | ||||
| M1A.2620 | Drug-induced chronic gout, left knee, without tophus (tophi) | Can lead a claim | E | None |
| M1A.2621 | Drug-induced chronic gout, left knee, with tophus (tophi) | Can lead a claim | E | None |
| M1A.269 Drug-induced chronic gout, unspecified knee | ||||
| M1A.2690 | Drug-induced chronic gout, unspecified knee, without tophus (tophi)CMS: Drug-induced chronic gout, unspecified knee, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.2691 | Drug-induced chronic gout, unspecified knee, with tophus (tophi)CMS: Drug-induced chronic gout, unspecified knee, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.27 Drug-induced chronic gout, ankle and foot | ||||
| M1A.271 Drug-induced chronic gout, right ankle and foot | ||||
| M1A.2710 | Drug-induced chronic gout, right ankle and foot, without tophus (tophi)CMS: Drug-induced chronic gout, right ankle and foot, w/o tophus | Can lead a claim | E | None |
| M1A.2711 | Drug-induced chronic gout, right ankle and foot, with tophus (tophi)CMS: Drug-induced chronic gout, right ankle and foot, with tophus | Can lead a claim | E | None |
| M1A.272 Drug-induced chronic gout, left ankle and foot | ||||
| M1A.2720 | Drug-induced chronic gout, left ankle and foot, without tophus (tophi)CMS: Drug-induced chronic gout, left ankle and foot, w/o tophus | Can lead a claim | E | None |
| M1A.2721 | Drug-induced chronic gout, left ankle and foot, with tophus (tophi)CMS: Drug-induced chronic gout, left ankle and foot, with tophus | Can lead a claim | E | None |
| M1A.279 Drug-induced chronic gout, unspecified ankle and foot | ||||
| M1A.2790 | Drug-induced chronic gout, unspecified ankle and foot, without tophus (tophi)CMS: Drug-induced chronic gout, unsp ankle and foot, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.2791 | Drug-induced chronic gout, unspecified ankle and foot, with tophus (tophi)CMS: Drug-induced chronic gout, unsp ankle and foot, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.28 Drug-induced chronic gout, vertebrae | ||||
| M1A.28X0 | Drug-induced chronic gout, vertebrae, without tophus (tophi) | Can lead a claim | E | None |
| M1A.28X1 | Drug-induced chronic gout, vertebrae, with tophus (tophi) | Can lead a claim | E | None |
| M1A.29 Drug-induced chronic gout, multiple sites | ||||
| M1A.29X0 | Drug-induced chronic gout, multiple sites, without tophus (tophi)CMS: Drug-induced chronic gout, multiple sites, without tophus | Can lead a claim | E | None |
| M1A.29X1 | Drug-induced chronic gout, multiple sites, with tophus (tophi)CMS: Drug-induced chronic gout, multiple sites, with tophus | Can lead a claim | E | None |
| M1A.3 Chronic gout due to renal impairment | ||||
| M1A.30 Chronic gout due to renal impairment, unspecified site | ||||
| M1A.30X0 | Chronic gout due to renal impairment, unspecified site, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp site, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.30X1 | Chronic gout due to renal impairment, unspecified site, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp site, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.31 Chronic gout due to renal impairment, shoulder | ||||
| M1A.311 Chronic gout due to renal impairment, right shoulder | ||||
| M1A.3110 | Chronic gout due to renal impairment, right shoulder, without tophus (tophi)CMS: Chronic gout due to renal impairment, r shoulder, w/o toph | Can lead a claim, code first applies | E | None |
| M1A.3111 | Chronic gout due to renal impairment, right shoulder, with tophus (tophi)CMS: Chronic gout due to renal impairment, right shoulder, w toph | Can lead a claim, code first applies | E | None |
| M1A.312 Chronic gout due to renal impairment, left shoulder | ||||
| M1A.3120 | Chronic gout due to renal impairment, left shoulder, without tophus (tophi)CMS: Chronic gout due to renal impairment, l shoulder, w/o toph | Can lead a claim, code first applies | E | None |
| M1A.3121 | Chronic gout due to renal impairment, left shoulder, with tophus (tophi)CMS: Chronic gout due to renal impairment, left shoulder, w toph | Can lead a claim, code first applies | E | None |
| M1A.319 Chronic gout due to renal impairment, unspecified shoulder | ||||
| M1A.3190 | Chronic gout due to renal impairment, unspecified shoulder, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp shldr, w/o toph | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.3191 | Chronic gout due to renal impairment, unspecified shoulder, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp shoulder, w toph | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.32 Chronic gout due to renal impairment, elbow | ||||
| M1A.321 Chronic gout due to renal impairment, right elbow | ||||
| M1A.3210 | Chronic gout due to renal impairment, right elbow, without tophus (tophi)CMS: Chronic gout due to renal impairment, right elbow, w/o toph | Can lead a claim, code first applies | E | None |
| M1A.3211 | Chronic gout due to renal impairment, right elbow, with tophus (tophi)CMS: Chronic gout due to renal impairment, right elbow, w tophus | Can lead a claim, code first applies | E | None |
| M1A.322 Chronic gout due to renal impairment, left elbow | ||||
| M1A.3220 | Chronic gout due to renal impairment, left elbow, without tophus (tophi)CMS: Chronic gout due to renal impairment, left elbow, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3221 | Chronic gout due to renal impairment, left elbow, with tophus (tophi)CMS: Chronic gout due to renal impairment, left elbow, w tophus | Can lead a claim, code first applies | E | None |
| M1A.329 Chronic gout due to renal impairment, unspecified elbow | ||||
| M1A.3290 | Chronic gout due to renal impairment, unspecified elbow, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp elbow, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.3291 | Chronic gout due to renal impairment, unspecified elbow, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp elbow, w tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.33 Chronic gout due to renal impairment, wrist | ||||
| M1A.331 Chronic gout due to renal impairment, right wrist | ||||
| M1A.3310 | Chronic gout due to renal impairment, right wrist, without tophus (tophi)CMS: Chronic gout due to renal impairment, right wrist, w/o toph | Can lead a claim, code first applies | E | None |
| M1A.3311 | Chronic gout due to renal impairment, right wrist, with tophus (tophi)CMS: Chronic gout due to renal impairment, right wrist, w tophus | Can lead a claim, code first applies | E | None |
| M1A.332 Chronic gout due to renal impairment, left wrist | ||||
| M1A.3320 | Chronic gout due to renal impairment, left wrist, without tophus (tophi)CMS: Chronic gout due to renal impairment, left wrist, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3321 | Chronic gout due to renal impairment, left wrist, with tophus (tophi)CMS: Chronic gout due to renal impairment, left wrist, w tophus | Can lead a claim, code first applies | E | None |
| M1A.339 Chronic gout due to renal impairment, unspecified wrist | ||||
| M1A.3390 | Chronic gout due to renal impairment, unspecified wrist, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp wrist, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.3391 | Chronic gout due to renal impairment, unspecified wrist, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp wrist, w tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.34 Chronic gout due to renal impairment, hand | ||||
| M1A.341 Chronic gout due to renal impairment, right hand | ||||
| M1A.3410 | Chronic gout due to renal impairment, right hand, without tophus (tophi)CMS: Chronic gout due to renal impairment, right hand, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3411 | Chronic gout due to renal impairment, right hand, with tophus (tophi)CMS: Chronic gout due to renal impairment, right hand, w tophus | Can lead a claim, code first applies | E | None |
| M1A.342 Chronic gout due to renal impairment, left hand | ||||
| M1A.3420 | Chronic gout due to renal impairment, left hand, without tophus (tophi)CMS: Chronic gout due to renal impairment, left hand, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3421 | Chronic gout due to renal impairment, left hand, with tophus (tophi)CMS: Chronic gout due to renal impairment, left hand, with tophus | Can lead a claim, code first applies | E | None |
| M1A.349 Chronic gout due to renal impairment, unspecified hand | ||||
| M1A.3490 | Chronic gout due to renal impairment, unspecified hand, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp hand, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.3491 | Chronic gout due to renal impairment, unspecified hand, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp hand, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.35 Chronic gout due to renal impairment, hip | ||||
| M1A.351 Chronic gout due to renal impairment, right hip | ||||
| M1A.3510 | Chronic gout due to renal impairment, right hip, without tophus (tophi)CMS: Chronic gout due to renal impairment, right hip, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3511 | Chronic gout due to renal impairment, right hip, with tophus (tophi)CMS: Chronic gout due to renal impairment, right hip, with tophus | Can lead a claim, code first applies | E | None |
| M1A.352 Chronic gout due to renal impairment, left hip | ||||
| M1A.3520 | Chronic gout due to renal impairment, left hip, without tophus (tophi)CMS: Chronic gout due to renal impairment, left hip, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3521 | Chronic gout due to renal impairment, left hip, with tophus (tophi)CMS: Chronic gout due to renal impairment, left hip, with tophus | Can lead a claim, code first applies | E | None |
| M1A.359 Chronic gout due to renal impairment, unspecified hip | ||||
| M1A.3590 | Chronic gout due to renal impairment, unspecified hip, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp hip, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.3591 | Chronic gout due to renal impairment, unspecified hip, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp hip, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.36 Chronic gout due to renal impairment, knee | ||||
| M1A.361 Chronic gout due to renal impairment, right knee | ||||
| M1A.3610 | Chronic gout due to renal impairment, right knee, without tophus (tophi)CMS: Chronic gout due to renal impairment, right knee, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3611 | Chronic gout due to renal impairment, right knee, with tophus (tophi)CMS: Chronic gout due to renal impairment, right knee, w tophus | Can lead a claim, code first applies | E | None |
| M1A.362 Chronic gout due to renal impairment, left knee | ||||
| M1A.3620 | Chronic gout due to renal impairment, left knee, without tophus (tophi)CMS: Chronic gout due to renal impairment, left knee, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.3621 | Chronic gout due to renal impairment, left knee, with tophus (tophi)CMS: Chronic gout due to renal impairment, left knee, with tophus | Can lead a claim, code first applies | E | None |
| M1A.369 Chronic gout due to renal impairment, unspecified knee | ||||
| M1A.3690 | Chronic gout due to renal impairment, unspecified knee, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp knee, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.3691 | Chronic gout due to renal impairment, unspecified knee, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp knee, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.37 Chronic gout due to renal impairment, ankle and foot | ||||
| M1A.371 Chronic gout due to renal impairment, right ankle and foot | ||||
| M1A.3710 | Chronic gout due to renal impairment, right ankle and foot, without tophus (tophi)CMS: Chronic gout due to renal impairment, right ank/ft, w/o toph | Can lead a claim, code first applies | E | None |
| M1A.3711 | Chronic gout due to renal impairment, right ankle and foot, with tophus (tophi)CMS: Chronic gout due to renal impairment, right ank/ft, w toph | Can lead a claim, code first applies | E | None |
| M1A.372 Chronic gout due to renal impairment, left ankle and foot | ||||
| M1A.3720 | Chronic gout due to renal impairment, left ankle and foot, without tophus (tophi)CMS: Chronic gout due to renal impairment, left ank/ft, w/o toph | Can lead a claim, code first applies | E | None |
| M1A.3721 | Chronic gout due to renal impairment, left ankle and foot, with tophus (tophi)CMS: Chronic gout due to renal impairment, left ank/ft, w toph | Can lead a claim, code first applies | E | None |
| M1A.379 Chronic gout due to renal impairment, unspecified ankle and foot | ||||
| M1A.3790 | Chronic gout due to renal impairment, unspecified ankle and foot, without tophus (tophi)CMS: Chronic gout due to renal impairment, unsp ank/ft, w/o toph | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.3791 | Chronic gout due to renal impairment, unspecified ankle and foot, with tophus (tophi)CMS: Chronic gout due to renal impairment, unsp ank/ft, w toph | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.38 Chronic gout due to renal impairment, vertebrae | ||||
| M1A.38X0 | Chronic gout due to renal impairment, vertebrae, without tophus (tophi)CMS: Chronic gout due to renal impairment, vertebrae, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.38X1 | Chronic gout due to renal impairment, vertebrae, with tophus (tophi)CMS: Chronic gout due to renal impairment, vertebrae, with tophus | Can lead a claim, code first applies | E | None |
| M1A.39 Chronic gout due to renal impairment, multiple sites | ||||
| M1A.39X0 | Chronic gout due to renal impairment, multiple sites, without tophus (tophi)CMS: Chronic gout due to renal impairment, mult sites, w/o toph | Can lead a claim, code first applies | E | None |
| M1A.39X1 | Chronic gout due to renal impairment, multiple sites, with tophus (tophi)CMS: Chronic gout due to renal impairment, multiple sites, w toph | Can lead a claim, code first applies | E | None |
| M1A.4 Other secondary chronic gout | ||||
| M1A.40 Other secondary chronic gout, unspecified site | ||||
| M1A.40X0 | Other secondary chronic gout, unspecified site, without tophus (tophi)CMS: Other secondary chronic gout, unsp site, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.40X1 | Other secondary chronic gout, unspecified site, with tophus (tophi)CMS: Other secondary chronic gout, unspecified site, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.41 Other secondary chronic gout, shoulder | ||||
| M1A.411 Other secondary chronic gout, right shoulder | ||||
| M1A.4110 | Other secondary chronic gout, right shoulder, without tophus (tophi)CMS: Other secondary chronic gout, right shoulder, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4111 | Other secondary chronic gout, right shoulder, with tophus (tophi)CMS: Other secondary chronic gout, right shoulder, with tophus | Can lead a claim, code first applies | E | None |
| M1A.412 Other secondary chronic gout, left shoulder | ||||
| M1A.4120 | Other secondary chronic gout, left shoulder, without tophus (tophi)CMS: Other secondary chronic gout, left shoulder, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4121 | Other secondary chronic gout, left shoulder, with tophus (tophi)CMS: Other secondary chronic gout, left shoulder, with tophus | Can lead a claim, code first applies | E | None |
| M1A.419 Other secondary chronic gout, unspecified shoulder | ||||
| M1A.4190 | Other secondary chronic gout, unspecified shoulder, without tophus (tophi)CMS: Other secondary chronic gout, unsp shoulder, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.4191 | Other secondary chronic gout, unspecified shoulder, with tophus (tophi)CMS: Other secondary chronic gout, unsp shoulder, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.42 Other secondary chronic gout, elbow | ||||
| M1A.421 Other secondary chronic gout, right elbow | ||||
| M1A.4210 | Other secondary chronic gout, right elbow, without tophus (tophi)CMS: Other secondary chronic gout, right elbow, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4211 | Other secondary chronic gout, right elbow, with tophus (tophi)CMS: Other secondary chronic gout, right elbow, with tophus | Can lead a claim, code first applies | E | None |
| M1A.422 Other secondary chronic gout, left elbow | ||||
| M1A.4220 | Other secondary chronic gout, left elbow, without tophus (tophi)CMS: Other secondary chronic gout, left elbow, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4221 | Other secondary chronic gout, left elbow, with tophus (tophi)CMS: Other secondary chronic gout, left elbow, with tophus | Can lead a claim, code first applies | E | None |
| M1A.429 Other secondary chronic gout, unspecified elbow | ||||
| M1A.4290 | Other secondary chronic gout, unspecified elbow, without tophus (tophi)CMS: Other secondary chronic gout, unsp elbow, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.4291 | Other secondary chronic gout, unspecified elbow, with tophus (tophi)CMS: Other secondary chronic gout, unspecified elbow, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.43 Other secondary chronic gout, wrist | ||||
| M1A.431 Other secondary chronic gout, right wrist | ||||
| M1A.4310 | Other secondary chronic gout, right wrist, without tophus (tophi)CMS: Other secondary chronic gout, right wrist, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4311 | Other secondary chronic gout, right wrist, with tophus (tophi)CMS: Other secondary chronic gout, right wrist, with tophus | Can lead a claim, code first applies | E | None |
| M1A.432 Other secondary chronic gout, left wrist | ||||
| M1A.4320 | Other secondary chronic gout, left wrist, without tophus (tophi)CMS: Other secondary chronic gout, left wrist, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4321 | Other secondary chronic gout, left wrist, with tophus (tophi)CMS: Other secondary chronic gout, left wrist, with tophus | Can lead a claim, code first applies | E | None |
| M1A.439 Other secondary chronic gout, unspecified wrist | ||||
| M1A.4390 | Other secondary chronic gout, unspecified wrist, without tophus (tophi)CMS: Other secondary chronic gout, unsp wrist, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.4391 | Other secondary chronic gout, unspecified wrist, with tophus (tophi)CMS: Other secondary chronic gout, unspecified wrist, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.44 Other secondary chronic gout, hand | ||||
| M1A.441 Other secondary chronic gout, right hand | ||||
| M1A.4410 | Other secondary chronic gout, right hand, without tophus (tophi)CMS: Other secondary chronic gout, right hand, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4411 | Other secondary chronic gout, right hand, with tophus (tophi)CMS: Other secondary chronic gout, right hand, with tophus | Can lead a claim, code first applies | E | None |
| M1A.442 Other secondary chronic gout, left hand | ||||
| M1A.4420 | Other secondary chronic gout, left hand, without tophus (tophi)CMS: Other secondary chronic gout, left hand, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4421 | Other secondary chronic gout, left hand, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.449 Other secondary chronic gout, unspecified hand | ||||
| M1A.4490 | Other secondary chronic gout, unspecified hand, without tophus (tophi)CMS: Other secondary chronic gout, unsp hand, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.4491 | Other secondary chronic gout, unspecified hand, with tophus (tophi)CMS: Other secondary chronic gout, unspecified hand, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.45 Other secondary chronic gout, hip | ||||
| M1A.451 Other secondary chronic gout, right hip | ||||
| M1A.4510 | Other secondary chronic gout, right hip, without tophus (tophi)CMS: Other secondary chronic gout, right hip, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4511 | Other secondary chronic gout, right hip, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.452 Other secondary chronic gout, left hip | ||||
| M1A.4520 | Other secondary chronic gout, left hip, without tophus (tophi)CMS: Other secondary chronic gout, left hip, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4521 | Other secondary chronic gout, left hip, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.459 Other secondary chronic gout, unspecified hip | ||||
| M1A.4590 | Other secondary chronic gout, unspecified hip, without tophus (tophi)CMS: Other secondary chronic gout, unsp hip, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.4591 | Other secondary chronic gout, unspecified hip, with tophus (tophi)CMS: Other secondary chronic gout, unspecified hip, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.46 Other secondary chronic gout, knee | ||||
| M1A.461 Other secondary chronic gout, right knee | ||||
| M1A.4610 | Other secondary chronic gout, right knee, without tophus (tophi)CMS: Other secondary chronic gout, right knee, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4611 | Other secondary chronic gout, right knee, with tophus (tophi)CMS: Other secondary chronic gout, right knee, with tophus | Can lead a claim, code first applies | E | None |
| M1A.462 Other secondary chronic gout, left knee | ||||
| M1A.4620 | Other secondary chronic gout, left knee, without tophus (tophi)CMS: Other secondary chronic gout, left knee, without tophus | Can lead a claim, code first applies | E | None |
| M1A.4621 | Other secondary chronic gout, left knee, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.469 Other secondary chronic gout, unspecified knee | ||||
| M1A.4690 | Other secondary chronic gout, unspecified knee, without tophus (tophi)CMS: Other secondary chronic gout, unsp knee, without tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.4691 | Other secondary chronic gout, unspecified knee, with tophus (tophi)CMS: Other secondary chronic gout, unspecified knee, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.47 Other secondary chronic gout, ankle and foot | ||||
| M1A.471 Other secondary chronic gout, right ankle and foot | ||||
| M1A.4710 | Other secondary chronic gout, right ankle and foot, without tophus (tophi)CMS: Oth secondary chronic gout, right ankle and foot, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.4711 | Other secondary chronic gout, right ankle and foot, with tophus (tophi)CMS: Oth secondary chronic gout, right ankle and foot, w tophus | Can lead a claim, code first applies | E | None |
| M1A.472 Other secondary chronic gout, left ankle and foot | ||||
| M1A.4720 | Other secondary chronic gout, left ankle and foot, without tophus (tophi)CMS: Oth secondary chronic gout, left ankle and foot, w/o tophus | Can lead a claim, code first applies | E | None |
| M1A.4721 | Other secondary chronic gout, left ankle and foot, with tophus (tophi)CMS: Oth secondary chronic gout, left ankle and foot, with tophus | Can lead a claim, code first applies | E | None |
| M1A.479 Other secondary chronic gout, unspecified ankle and foot | ||||
| M1A.4790 | Other secondary chronic gout, unspecified ankle and foot, without tophus (tophi)CMS: Oth secondary chronic gout, unsp ankle and foot, w/o tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.4791 | Other secondary chronic gout, unspecified ankle and foot, with tophus (tophi)CMS: Oth secondary chronic gout, unsp ankle and foot, with tophus | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M1A.48 Other secondary chronic gout, vertebrae | ||||
| M1A.48X0 | Other secondary chronic gout, vertebrae, without tophus (tophi)CMS: Other secondary chronic gout, vertebrae, without tophus | Can lead a claim, code first applies | E | None |
| M1A.48X1 | Other secondary chronic gout, vertebrae, with tophus (tophi) | Can lead a claim, code first applies | E | None |
| M1A.49 Other secondary chronic gout, multiple sites | ||||
| M1A.49X0 | Other secondary chronic gout, multiple sites, without tophus (tophi)CMS: Other secondary chronic gout, multiple sites, without tophus | Can lead a claim, code first applies | E | None |
| M1A.49X1 | Other secondary chronic gout, multiple sites, with tophus (tophi)CMS: Other secondary chronic gout, multiple sites, with tophus | Can lead a claim, code first applies | E | None |
| M1A.9 Chronic gout, unspecified | ||||
| M1A.9XX0 | Chronic gout, unspecified, without tophus (tophi) | Can lead a claim | E | None |
| M1A.9XX1 | Chronic gout, unspecified, with tophus (tophi) | Can lead a claim | E | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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