L03.313 — Cellulitis of chest wall
L03.313 is a billable, specific ICD-10-CM code for cellulitis of chest wall. It is valid for submission on a claim.
Excludes2 inherited from the categories above L03.313
Also inherited, and the opposite of Excludes1: these conditions are not part of L03.313, but a patient can have both, so you may code both.
Written on L03.31 — Cellulitis of trunk
Written on L03 — Cellulitis and acute lymphangitis
- 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)
Other codes that can never be billed with L03.313
These codes carry an Excludes1 note pointing at L03.313. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L03.313 alone.
- I89.1Lymphangitis
Risk adjustment
L03.313 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
L03.313 is named in 7 Medicare coverage policies — 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53058Billing and Coding: Home Health Physical Therapy
- A55909Billing and Coding: Wound Care
- A56766Billing and Coding: Incision and Drainage (I&D) of Abscess of Skin, Subcutaneous and Accessory Structures
- A57044Billing and Coding: Removal of Benign Skin Lesions
How L03.313 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L03.313.
- Cellulitis›chest wall
- Cellulitis›pectoral(region)
- Cellulitis›trunk›chest wall
Code history
L03.313 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share L03.31. If L03.313 is not quite right, the correct code is usually one of these.
Questions about L03.313
- Is L03.313 a billable ICD-10-CM code?
- Yes. L03.313 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L03.313 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Infections of the skin and subcutaneous tissue (L00-L08).