L03.312
Cellulitis of back [any part except buttock]
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 34 never code together
L03code
Excludes2
- cellulitis of anal and rectal region (K61.-)K61.-
- cellulitis of external auditory canal (H60.1)H60.1
- cellulitis of eyelid (H00.0)H00.0
- cellulitis of female external genital organs (N76.4)N76.4
- cellulitis of lacrimal apparatus (H04.3)H04.3
- cellulitis of male external genital organs (N48.2, N49.-)N48.2N49.-
- cellulitis of mouth (K12.2)K12.2
- cellulitis of nose (J34.0)J34.0
- eosinophilic cellulitis [Wells] (L98.3)L98.3
- febrile neutrophilic dermatosis [Sweet] (L98.2)L98.2
- lymphangitis (chronic) (subacute) (I89.1)I89.1
L00-L08block
Excludes2
- hordeolum (H00.0)H00.0
- infective dermatitis (L30.3)L30.3
- local infections of skin classified in Chapter 1
- lupus panniculitis (L93.2)L93.2
- panniculitis NOS (M79.3)M79.3
- panniculitis of neck and back (M54.0-)M54.0-
- Perlèche NOS (K13.0)K13.0
- Perlèche due to candidiasis (B37.0)B37.0
- Perlèche due to riboflavin deficiency (E53.0)E53.0
- pyogenic granuloma (L98.0)L98.0
- relapsing panniculitis [Weber-Christian] (M35.6)M35.6
- viral warts (B07.-)B07.-
- zoster (B02.-)B02.-
L00-L99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- lipomelanotic reticulosis (I89.8)I89.8
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- viral warts (B07.-)B07.-
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
Index entries leading here 1
Alongside this code 8 same parent — L03.31
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.