ICD-10 · PDGM grouping
M87 Osteonecrosis
All 217 codes in the M87 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
217
Can lead a claim
145
Cannot lead a claim
72
What CMS assigns to M87
145 of the 217 codes group to Musculoskeletal Rehabilitation; 72 are assigned no clinical group. None of the 217 is assigned a comorbidity subgroup. 145 of the 217 can lead a claim.
Every code in M87
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 |
|---|---|---|---|---|
| M87.0 Idiopathic aseptic necrosis of bone | ||||
| M87.00 | Idiopathic aseptic necrosis of unspecified bone | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.01 Idiopathic aseptic necrosis of shoulder | ||||
| M87.011 | Idiopathic aseptic necrosis of right shoulder | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| M87.012 | Idiopathic aseptic necrosis of left shoulder | Can lead a claim | E | None |
| M87.019 | Idiopathic aseptic necrosis of unspecified shoulder | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.02 Idiopathic aseptic necrosis of humerus | ||||
| M87.021 | Idiopathic aseptic necrosis of right humerus | Can lead a claim | E | None |
| M87.022 | Idiopathic aseptic necrosis of left humerus | Can lead a claim | E | None |
| M87.029 | Idiopathic aseptic necrosis of unspecified humerus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.03 Idiopathic aseptic necrosis of radius, ulna and carpus | ||||
| M87.031 | Idiopathic aseptic necrosis of right radius | Can lead a claim | E | None |
| M87.032 | Idiopathic aseptic necrosis of left radius | Can lead a claim | E | None |
| M87.033 | Idiopathic aseptic necrosis of unspecified radius | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.034 | Idiopathic aseptic necrosis of right ulna | Can lead a claim | E | None |
| M87.035 | Idiopathic aseptic necrosis of left ulna | Can lead a claim | E | None |
| M87.036 | Idiopathic aseptic necrosis of unspecified ulna | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.037 | Idiopathic aseptic necrosis of right carpus | Can lead a claim | E | None |
| M87.038 | Idiopathic aseptic necrosis of left carpus | Can lead a claim | E | None |
| M87.039 | Idiopathic aseptic necrosis of unspecified carpus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.04 Idiopathic aseptic necrosis of hand and fingers | ||||
| M87.041 | Idiopathic aseptic necrosis of right hand | Can lead a claim | E | None |
| M87.042 | Idiopathic aseptic necrosis of left hand | Can lead a claim | E | None |
| M87.043 | Idiopathic aseptic necrosis of unspecified hand | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.044 | Idiopathic aseptic necrosis of right finger(s) | Can lead a claim | E | None |
| M87.045 | Idiopathic aseptic necrosis of left finger(s) | Can lead a claim | E | None |
| M87.046 | Idiopathic aseptic necrosis of unspecified finger(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.05 Idiopathic aseptic necrosis of pelvis and femur | ||||
| M87.050 | Idiopathic aseptic necrosis of pelvis | Can lead a claim | E | None |
| M87.051 | Idiopathic aseptic necrosis of right femur | Can lead a claim | E | None |
| M87.052 | Idiopathic aseptic necrosis of left femur | Can lead a claim | E | None |
| M87.059 | Idiopathic aseptic necrosis of unspecified femur | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.06 Idiopathic aseptic necrosis of tibia and fibula | ||||
| M87.061 | Idiopathic aseptic necrosis of right tibia | Can lead a claim | E | None |
| M87.062 | Idiopathic aseptic necrosis of left tibia | Can lead a claim | E | None |
| M87.063 | Idiopathic aseptic necrosis of unspecified tibia | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.064 | Idiopathic aseptic necrosis of right fibula | Can lead a claim | E | None |
| M87.065 | Idiopathic aseptic necrosis of left fibula | Can lead a claim | E | None |
| M87.066 | Idiopathic aseptic necrosis of unspecified fibula | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.07 Idiopathic aseptic necrosis of ankle, foot and toes | ||||
| M87.071 | Idiopathic aseptic necrosis of right ankle | Can lead a claim | E | None |
| M87.072 | Idiopathic aseptic necrosis of left ankle | Can lead a claim | E | None |
| M87.073 | Idiopathic aseptic necrosis of unspecified ankle | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.074 | Idiopathic aseptic necrosis of right foot | Can lead a claim | E | None |
| M87.075 | Idiopathic aseptic necrosis of left foot | Can lead a claim | E | None |
| M87.076 | Idiopathic aseptic necrosis of unspecified foot | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.077 | Idiopathic aseptic necrosis of right toe(s) | Can lead a claim | E | None |
| M87.078 | Idiopathic aseptic necrosis of left toe(s) | Can lead a claim | E | None |
| M87.079 | Idiopathic aseptic necrosis of unspecified toe(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.08 | Idiopathic aseptic necrosis of bone, other site | Can lead a claim | E | None |
| M87.09 | Idiopathic aseptic necrosis of bone, multiple sites | Can lead a claim | E | None |
| M87.1 Osteonecrosis due to drugs | ||||
| M87.10 | Osteonecrosis due to drugs, unspecified bone | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.11 Osteonecrosis due to drugs, shoulder | ||||
| M87.111 | Osteonecrosis due to drugs, right shoulder | Can lead a claim | E | None |
| M87.112 | Osteonecrosis due to drugs, left shoulder | Can lead a claim | E | None |
| M87.119 | Osteonecrosis due to drugs, unspecified shoulder | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.12 Osteonecrosis due to drugs, humerus | ||||
| M87.121 | Osteonecrosis due to drugs, right humerus | Can lead a claim | E | None |
| M87.122 | Osteonecrosis due to drugs, left humerus | Can lead a claim | E | None |
| M87.129 | Osteonecrosis due to drugs, unspecified humerus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.13 Osteonecrosis due to drugs of radius, ulna and carpus | ||||
| M87.131 | Osteonecrosis due to drugs of right radius | Can lead a claim | E | None |
| M87.132 | Osteonecrosis due to drugs of left radius | Can lead a claim | E | None |
| M87.133 | Osteonecrosis due to drugs of unspecified radius | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.134 | Osteonecrosis due to drugs of right ulna | Can lead a claim | E | None |
| M87.135 | Osteonecrosis due to drugs of left ulna | Can lead a claim | E | None |
| M87.136 | Osteonecrosis due to drugs of unspecified ulna | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.137 | Osteonecrosis due to drugs of right carpus | Can lead a claim | E | None |
| M87.138 | Osteonecrosis due to drugs of left carpus | Can lead a claim | E | None |
| M87.139 | Osteonecrosis due to drugs of unspecified carpus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.14 Osteonecrosis due to drugs, hand and fingers | ||||
| M87.141 | Osteonecrosis due to drugs, right hand | Can lead a claim | E | None |
| M87.142 | Osteonecrosis due to drugs, left hand | Can lead a claim | E | None |
| M87.143 | Osteonecrosis due to drugs, unspecified hand | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.144 | Osteonecrosis due to drugs, right finger(s) | Can lead a claim | E | None |
| M87.145 | Osteonecrosis due to drugs, left finger(s) | Can lead a claim | E | None |
| M87.146 | Osteonecrosis due to drugs, unspecified finger(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.15 Osteonecrosis due to drugs, pelvis and femur | ||||
| M87.150 | Osteonecrosis due to drugs, pelvis | Can lead a claim | E | None |
| M87.151 | Osteonecrosis due to drugs, right femur | Can lead a claim | E | None |
| M87.152 | Osteonecrosis due to drugs, left femur | Can lead a claim | E | None |
| M87.159 | Osteonecrosis due to drugs, unspecified femur | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.16 Osteonecrosis due to drugs, tibia and fibula | ||||
| M87.161 | Osteonecrosis due to drugs, right tibia | Can lead a claim | E | None |
| M87.162 | Osteonecrosis due to drugs, left tibia | Can lead a claim | E | None |
| M87.163 | Osteonecrosis due to drugs, unspecified tibia | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.164 | Osteonecrosis due to drugs, right fibula | Can lead a claim | E | None |
| M87.165 | Osteonecrosis due to drugs, left fibula | Can lead a claim | E | None |
| M87.166 | Osteonecrosis due to drugs, unspecified fibula | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.17 Osteonecrosis due to drugs, ankle, foot and toes | ||||
| M87.171 | Osteonecrosis due to drugs, right ankle | Can lead a claim | E | None |
| M87.172 | Osteonecrosis due to drugs, left ankle | Can lead a claim | E | None |
| M87.173 | Osteonecrosis due to drugs, unspecified ankle | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.174 | Osteonecrosis due to drugs, right foot | Can lead a claim | E | None |
| M87.175 | Osteonecrosis due to drugs, left foot | Can lead a claim | E | None |
| M87.176 | Osteonecrosis due to drugs, unspecified foot | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.177 | Osteonecrosis due to drugs, right toe(s) | Can lead a claim | E | None |
| M87.178 | Osteonecrosis due to drugs, left toe(s) | Can lead a claim | E | None |
| M87.179 | Osteonecrosis due to drugs, unspecified toe(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.18 Osteonecrosis due to drugs, other site | ||||
| M87.180 | Osteonecrosis due to drugs, jaw | Can lead a claim | E | None |
| M87.188 | Osteonecrosis due to drugs, other site | Can lead a claim | E | None |
| M87.19 | Osteonecrosis due to drugs, multiple sites | Can lead a claim | E | None |
| M87.2 Osteonecrosis due to previous trauma | ||||
| M87.20 | Osteonecrosis due to previous trauma, unspecified bone | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.21 Osteonecrosis due to previous trauma, shoulder | ||||
| M87.211 | Osteonecrosis due to previous trauma, right shoulder | Can lead a claim | E | None |
| M87.212 | Osteonecrosis due to previous trauma, left shoulder | Can lead a claim | E | None |
| M87.219 | Osteonecrosis due to previous trauma, unspecified shoulder | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.22 Osteonecrosis due to previous trauma, humerus | ||||
| M87.221 | Osteonecrosis due to previous trauma, right humerus | Can lead a claim | E | None |
| M87.222 | Osteonecrosis due to previous trauma, left humerus | Can lead a claim | E | None |
| M87.229 | Osteonecrosis due to previous trauma, unspecified humerus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.23 Osteonecrosis due to previous trauma of radius, ulna and carpus | ||||
| M87.231 | Osteonecrosis due to previous trauma of right radius | Can lead a claim | E | None |
| M87.232 | Osteonecrosis due to previous trauma of left radius | Can lead a claim | E | None |
| M87.233 | Osteonecrosis due to previous trauma of unspecified radius | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.234 | Osteonecrosis due to previous trauma of right ulna | Can lead a claim | E | None |
| M87.235 | Osteonecrosis due to previous trauma of left ulna | Can lead a claim | E | None |
| M87.236 | Osteonecrosis due to previous trauma of unspecified ulna | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.237 | Osteonecrosis due to previous trauma of right carpus | Can lead a claim | E | None |
| M87.238 | Osteonecrosis due to previous trauma of left carpus | Can lead a claim | E | None |
| M87.239 | Osteonecrosis due to previous trauma of unspecified carpus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.24 Osteonecrosis due to previous trauma, hand and fingers | ||||
| M87.241 | Osteonecrosis due to previous trauma, right hand | Can lead a claim | E | None |
| M87.242 | Osteonecrosis due to previous trauma, left hand | Can lead a claim | E | None |
| M87.243 | Osteonecrosis due to previous trauma, unspecified hand | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.244 | Osteonecrosis due to previous trauma, right finger(s) | Can lead a claim | E | None |
| M87.245 | Osteonecrosis due to previous trauma, left finger(s) | Can lead a claim | E | None |
| M87.246 | Osteonecrosis due to previous trauma, unspecified finger(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.25 Osteonecrosis due to previous trauma, pelvis and femur | ||||
| M87.250 | Osteonecrosis due to previous trauma, pelvis | Can lead a claim | E | None |
| M87.251 | Osteonecrosis due to previous trauma, right femur | Can lead a claim | E | None |
| M87.252 | Osteonecrosis due to previous trauma, left femur | Can lead a claim | E | None |
| M87.256 | Osteonecrosis due to previous trauma, unspecified femur | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.26 Osteonecrosis due to previous trauma, tibia and fibula | ||||
| M87.261 | Osteonecrosis due to previous trauma, right tibia | Can lead a claim | E | None |
| M87.262 | Osteonecrosis due to previous trauma, left tibia | Can lead a claim | E | None |
| M87.263 | Osteonecrosis due to previous trauma, unspecified tibia | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.264 | Osteonecrosis due to previous trauma, right fibula | Can lead a claim | E | None |
| M87.265 | Osteonecrosis due to previous trauma, left fibula | Can lead a claim | E | None |
| M87.266 | Osteonecrosis due to previous trauma, unspecified fibula | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.27 Osteonecrosis due to previous trauma, ankle, foot and toes | ||||
| M87.271 | Osteonecrosis due to previous trauma, right ankle | Can lead a claim | E | None |
| M87.272 | Osteonecrosis due to previous trauma, left ankle | Can lead a claim | E | None |
| M87.273 | Osteonecrosis due to previous trauma, unspecified ankle | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.274 | Osteonecrosis due to previous trauma, right foot | Can lead a claim | E | None |
| M87.275 | Osteonecrosis due to previous trauma, left foot | Can lead a claim | E | None |
| M87.276 | Osteonecrosis due to previous trauma, unspecified foot | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.277 | Osteonecrosis due to previous trauma, right toe(s) | Can lead a claim | E | None |
| M87.278 | Osteonecrosis due to previous trauma, left toe(s) | Can lead a claim | E | None |
| M87.279 | Osteonecrosis due to previous trauma, unspecified toe(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.28 | Osteonecrosis due to previous trauma, other site | Can lead a claim | E | None |
| M87.29 | Osteonecrosis due to previous trauma, multiple sites | Can lead a claim | E | None |
| M87.3 Other secondary osteonecrosis | ||||
| M87.30 | Other secondary osteonecrosis, unspecified bone | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.31 Other secondary osteonecrosis, shoulder | ||||
| M87.311 | Other secondary osteonecrosis, right shoulder | Can lead a claim | E | None |
| M87.312 | Other secondary osteonecrosis, left shoulder | Can lead a claim | E | None |
| M87.319 | Other secondary osteonecrosis, unspecified shoulder | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.32 Other secondary osteonecrosis, humerus | ||||
| M87.321 | Other secondary osteonecrosis, right humerus | Can lead a claim | E | None |
| M87.322 | Other secondary osteonecrosis, left humerus | Can lead a claim | E | None |
| M87.329 | Other secondary osteonecrosis, unspecified humerus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.33 Other secondary osteonecrosis of radius, ulna and carpus | ||||
| M87.331 | Other secondary osteonecrosis of right radius | Can lead a claim | E | None |
| M87.332 | Other secondary osteonecrosis of left radius | Can lead a claim | E | None |
| M87.333 | Other secondary osteonecrosis of unspecified radius | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.334 | Other secondary osteonecrosis of right ulna | Can lead a claim | E | None |
| M87.335 | Other secondary osteonecrosis of left ulna | Can lead a claim | E | None |
| M87.336 | Other secondary osteonecrosis of unspecified ulna | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.337 | Other secondary osteonecrosis of right carpus | Can lead a claim | E | None |
| M87.338 | Other secondary osteonecrosis of left carpus | Can lead a claim | E | None |
| M87.339 | Other secondary osteonecrosis of unspecified carpus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.34 Other secondary osteonecrosis, hand and fingers | ||||
| M87.341 | Other secondary osteonecrosis, right hand | Can lead a claim | E | None |
| M87.342 | Other secondary osteonecrosis, left hand | Can lead a claim | E | None |
| M87.343 | Other secondary osteonecrosis, unspecified hand | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.344 | Other secondary osteonecrosis, right finger(s) | Can lead a claim | E | None |
| M87.345 | Other secondary osteonecrosis, left finger(s) | Can lead a claim | E | None |
| M87.346 | Other secondary osteonecrosis, unspecified finger(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.35 Other secondary osteonecrosis, pelvis and femur | ||||
| M87.350 | Other secondary osteonecrosis, pelvis | Can lead a claim | E | None |
| M87.351 | Other secondary osteonecrosis, right femur | Can lead a claim | E | None |
| M87.352 | Other secondary osteonecrosis, left femur | Can lead a claim | E | None |
| M87.353 | Other secondary osteonecrosis, unspecified femur | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.36 Other secondary osteonecrosis, tibia and fibula | ||||
| M87.361 | Other secondary osteonecrosis, right tibia | Can lead a claim | E | None |
| M87.362 | Other secondary osteonecrosis, left tibia | Can lead a claim | E | None |
| M87.363 | Other secondary osteonecrosis, unspecified tibia | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.364 | Other secondary osteonecrosis, right fibula | Can lead a claim | E | None |
| M87.365 | Other secondary osteonecrosis, left fibula | Can lead a claim | E | None |
| M87.366 | Other secondary osteonecrosis, unspecified fibula | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.37 Other secondary osteonecrosis, ankle and foot | ||||
| M87.371 | Other secondary osteonecrosis, right ankle | Can lead a claim | E | None |
| M87.372 | Other secondary osteonecrosis, left ankle | Can lead a claim | E | None |
| M87.373 | Other secondary osteonecrosis, unspecified ankle | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.374 | Other secondary osteonecrosis, right foot | Can lead a claim | E | None |
| M87.375 | Other secondary osteonecrosis, left foot | Can lead a claim | E | None |
| M87.376 | Other secondary osteonecrosis, unspecified foot | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.377 | Other secondary osteonecrosis, right toe(s) | Can lead a claim | E | None |
| M87.378 | Other secondary osteonecrosis, left toe(s) | Can lead a claim | E | None |
| M87.379 | Other secondary osteonecrosis, unspecified toe(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.38 | Other secondary osteonecrosis, other site | Can lead a claim | E | None |
| M87.39 | Other secondary osteonecrosis, multiple sites | Can lead a claim | E | None |
| M87.8 Other osteonecrosis | ||||
| M87.80 | Other osteonecrosis, unspecified bone | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.81 Other osteonecrosis, shoulder | ||||
| M87.811 | Other osteonecrosis, right shoulder | Can lead a claim | E | None |
| M87.812 | Other osteonecrosis, left shoulder | Can lead a claim | E | None |
| M87.819 | Other osteonecrosis, unspecified shoulder | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.82 Other osteonecrosis, humerus | ||||
| M87.821 | Other osteonecrosis, right humerus | Can lead a claim | E | None |
| M87.822 | Other osteonecrosis, left humerus | Can lead a claim | E | None |
| M87.829 | Other osteonecrosis, unspecified humerus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.83 Other osteonecrosis of radius, ulna and carpus | ||||
| M87.831 | Other osteonecrosis of right radius | Can lead a claim | E | None |
| M87.832 | Other osteonecrosis of left radius | Can lead a claim | E | None |
| M87.833 | Other osteonecrosis of unspecified radius | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.834 | Other osteonecrosis of right ulna | Can lead a claim | E | None |
| M87.835 | Other osteonecrosis of left ulna | Can lead a claim | E | None |
| M87.836 | Other osteonecrosis of unspecified ulna | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.837 | Other osteonecrosis of right carpus | Can lead a claim | E | None |
| M87.838 | Other osteonecrosis of left carpus | Can lead a claim | E | None |
| M87.839 | Other osteonecrosis of unspecified carpus | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.84 Other osteonecrosis, hand and fingers | ||||
| M87.841 | Other osteonecrosis, right hand | Can lead a claim | E | None |
| M87.842 | Other osteonecrosis, left hand | Can lead a claim | E | None |
| M87.843 | Other osteonecrosis, unspecified hand | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.844 | Other osteonecrosis, right finger(s) | Can lead a claim | E | None |
| M87.845 | Other osteonecrosis, left finger(s) | Can lead a claim | E | None |
| M87.849 | Other osteonecrosis, unspecified finger(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.85 Other osteonecrosis, pelvis and femur | ||||
| M87.850 | Other osteonecrosis, pelvis | Can lead a claim | E | None |
| M87.851 | Other osteonecrosis, right femur | Can lead a claim | E | None |
| M87.852 | Other osteonecrosis, left femur | Can lead a claim | E | None |
| M87.859 | Other osteonecrosis, unspecified femur | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.86 Other osteonecrosis, tibia and fibula | ||||
| M87.861 | Other osteonecrosis, right tibia | Can lead a claim | E | None |
| M87.862 | Other osteonecrosis, left tibia | Can lead a claim | E | None |
| M87.863 | Other osteonecrosis, unspecified tibia | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.864 | Other osteonecrosis, right fibula | Can lead a claim | E | None |
| M87.865 | Other osteonecrosis, left fibula | Can lead a claim | E | None |
| M87.869 | Other osteonecrosis, unspecified fibula | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.87 Other osteonecrosis, ankle, foot and toes | ||||
| M87.871 | Other osteonecrosis, right ankle | Can lead a claim | E | None |
| M87.872 | Other osteonecrosis, left ankle | Can lead a claim | E | None |
| M87.873 | Other osteonecrosis, unspecified ankle | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.874 | Other osteonecrosis, right foot | Can lead a claim | E | None |
| M87.875 | Other osteonecrosis, left foot | Can lead a claim | E | None |
| M87.876 | Other osteonecrosis, unspecified foot | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.877 | Other osteonecrosis, right toe(s) | Can lead a claim | E | None |
| M87.878 | Other osteonecrosis, left toe(s) | Can lead a claim | E | None |
| M87.879 | Other osteonecrosis, unspecified toe(s) | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M87.88 | Other osteonecrosis, other site | Can lead a claim | E | None |
| M87.89 | Other osteonecrosis, multiple sites | Can lead a claim | E | None |
| M87.9 | Osteonecrosis, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | 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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