L03.91 Acute lymphangitis, unspecified
Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.
Excludes1 (never code together)
Applies from L03 Cellulitis and acute lymphangitis
Excludes2 (not included here)
- cellulitis of anal and rectal region (K61.-)
- cellulitis of external auditory canal (H60.1)
- cellulitis of eyelid (H00.0)
- cellulitis of female external genital organs (N76.4)
- cellulitis of lacrimal apparatus (H04.3)
- cellulitis of male external genital organs (N48.2, N49.-)
- cellulitis of mouth (K12.2)
- cellulitis of nose (J34.0)
- eosinophilic cellulitis [Wells] (L98.3)
- febrile neutrophilic dermatosis [Sweet] (L98.2)
- lymphangitis (chronic) (subacute) (I89.1)
MS-DRG index
Defines the logic of DRG(s) 573-575 in MDC 09.
Approximate ICD-9-CM (GEMs)
682.9 Cellulitis and abscess of unspecified sites (approximate)
Code annotations containing back-references to L03.91
Back-references to L03
- Type 1 Excludes:
I89.1 Lymphangitis ("acute lymphangitis (L03.-)") - Type 2 Excludes:
L89 Pressure ulcer ("skin infections (L00-L08)") - Type 2 Excludes:
L97 Non-pressure chronic ulcer of lower limb, not elsewhere classified ("skin infections (L00-L08)") - Type 2 Excludes:
L98.4 Non-pressure chronic ulcer of skin, not elsewhere classified ("skin infections (L00-L08)") - Type 2 Excludes:
L98.A Non-pressure chronic ulcer of upper limb, not elsewhere classified ("skin infections (L00-L08)") - Use Additional:
T65.84 Toxic effect of xylazine ("cellulitis and acute lymphangitis (L03.-)")
Diagnosis Index entries for L03.91
Nearby codes
L03.89 Acute lymphangitis of other sitesL03.891 Acute lymphangitis of head [any part, except face]L03.898 Acute lymphangitis of other sitesL03.9 Cellulitis and acute lymphangitis, unspecifiedL03.90 Cellulitis, unspecifiedL03.91 Acute lymphangitis, unspecified (this code)