L03.818 — Cellulitis of other sites
L03.818 is a billable, specific ICD-10-CM code for cellulitis of other sites. It is valid for submission on a claim.
Risk adjustment
L03.818 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
L03.818 is named in 4 Medicare coverage policies — 4 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- 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
- A57161Billing and Coding: Benign Skin Lesion Removal (Excludes Actinic Keratosis, and Mohs)
How L03.818 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 L03.818.
- Cellulitis›specified site NEC
Related codes at this level
Codes that share L03.81. If L03.818 is not quite right, the correct code is usually one of these.
Questions about L03.818
- Is L03.818 a billable ICD-10-CM code?
- Yes. L03.818 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L03.818 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).