ICD-10 · PDGM grouping
L03 Cellulitis and acute lymphangitis
All 55 codes in the L03 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
55
Can lead a claim
47
Cannot lead a claim
8
What CMS assigns to L03
47 of the 55 codes group to Wound; 8 are assigned no clinical group. 36 of the 55 count toward the Cutaneous Abscess, Cellulitis, and Lymphangitis comorbidity subgroup; 19 are assigned none. 47 of the 55 can lead a claim.
- Cutaneous Abscess, Cellulitis, and Lymphangitis: can award the low comorbidity tier as a secondary diagnosis.
Every code in L03
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 |
|---|---|---|---|---|
| L03.0 Cellulitis and acute lymphangitis of finger and toe | ||||
| L03.01 Cellulitis of finger | ||||
| L03.011 | Cellulitis of right finger | Can lead a claim | C | None |
| L03.012 | Cellulitis of left finger | Can lead a claim | C | None |
| L03.019 | Cellulitis of unspecified finger | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| L03.02 Acute lymphangitis of finger | ||||
| L03.021 | Acute lymphangitis of right finger | Can lead a claim | C | None |
| L03.022 | Acute lymphangitis of left finger | Can lead a claim | C | None |
| L03.029 | Acute lymphangitis of unspecified finger | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| L03.03 Cellulitis of toe | ||||
| L03.031 | Cellulitis of right toe | Can lead a claim | C | None |
| L03.032 | Cellulitis of left toe | Can lead a claim | C | None |
| L03.039 | Cellulitis of unspecified toe | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| L03.04 Acute lymphangitis of toe | ||||
| L03.041 | Acute lymphangitis of right toe | Can lead a claim | C | None |
| L03.042 | Acute lymphangitis of left toe | Can lead a claim | C | None |
| L03.049 | Acute lymphangitis of unspecified toe | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| L03.1 Cellulitis and acute lymphangitis of other parts of limb | ||||
| L03.11 Cellulitis of other parts of limb | ||||
| L03.111 | Cellulitis of right axilla | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.112 | Cellulitis of left axilla | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.113 | Cellulitis of right upper limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.114 | Cellulitis of left upper limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.115 | Cellulitis of right lower limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.116 | Cellulitis of left lower limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.119 | Cellulitis of unspecified part of limb | 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 |
| L03.12 Acute lymphangitis of other parts of limb | ||||
| L03.121 | Acute lymphangitis of right axilla | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.122 | Acute lymphangitis of left axilla | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.123 | Acute lymphangitis of right upper limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.124 | Acute lymphangitis of left upper limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.125 | Acute lymphangitis of right lower limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.126 | Acute lymphangitis of left lower limb | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.129 | Acute lymphangitis of unspecified part of limb | 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 |
| L03.2 Cellulitis and acute lymphangitis of face and neck | ||||
| L03.21 Cellulitis and acute lymphangitis of face | ||||
| L03.211 | Cellulitis of face | Can lead a claim | C | None |
| L03.212 | Acute lymphangitis of face | Can lead a claim | C | None |
| L03.213 | Periorbital cellulitis | Can lead a claim | C | None |
| L03.22 Cellulitis and acute lymphangitis of neck | ||||
| L03.221 | Cellulitis of neck | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.222 | Acute lymphangitis of neck | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.3 Cellulitis and acute lymphangitis of trunk | ||||
| L03.31 Cellulitis of trunk | ||||
| L03.311 | Cellulitis of abdominal wall | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.312 | Cellulitis of back [any part except buttock and flank] | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.313 | Cellulitis of chest wall | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.314 | Cellulitis of groin | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.315 | Cellulitis of perineum | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.316 | Cellulitis of umbilicus | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.317 | Cellulitis of buttock | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.319 | Cellulitis of trunk, unspecified | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.31A | Cellulitis of flank | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.32 Acute lymphangitis of trunk | ||||
| L03.321 | Acute lymphangitis of abdominal wall | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.322 | Acute lymphangitis of back [any part except buttock and flank]CMS: Acute lymphangitis of back | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.323 | Acute lymphangitis of chest wall | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.324 | Acute lymphangitis of groin | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.325 | Acute lymphangitis of perineum | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.326 | Acute lymphangitis of umbilicus | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.327 | Acute lymphangitis of buttock | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.329 | Acute lymphangitis of trunk, unspecified | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.32A | Acute lymphangitis of flank | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.8 Cellulitis and acute lymphangitis of other sites | ||||
| L03.81 Cellulitis of other sites | ||||
| L03.811 | Cellulitis of head [any part, except face] | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.818 | Cellulitis of other sites | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.89 Acute lymphangitis of other sites | ||||
| L03.891 | Acute lymphangitis of head [any part, except face] | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.898 | Acute lymphangitis of other sites | Can lead a claim | C | Cutaneous Abscess, Cellulitis, and Lymphangitis |
| L03.9 Cellulitis and acute lymphangitis, unspecified | ||||
| L03.90 | Cellulitis, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| L03.91 | Acute lymphangitis, 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.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue