L30.4 — Erythema intertrigo
L30.4 is a billable, specific ICD-10-CM code for erythema intertrigo. It is valid for submission on a claim.
Other codes that can never be billed with L30.4
These codes carry an Excludes1 note pointing at L30.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L30.4 alone.
- L53Other erythematous conditions
Risk adjustment
L30.4 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
L30.4 is named in 15 Medicare coverage policies — 15 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56587Billing and Coding: Cosmetic and Reconstructive Surgery
- A56587Billing and Coding: Cosmetic and Reconstructive Surgery
- A56658Billing and Coding: Cosmetic and Reconstructive Surgery
- A56837Billing and Coding: Reduction Mammaplasty
How L30.4 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 L30.4.
- Chafing
- Intertrigo
- Dermatitis›friction
- Dermatitis›traumatic NEC
- Eczema›intertriginous NEC
- Erythema, erythematous›intertrigo
Related codes at this level
Codes that share L30. If L30.4 is not quite right, the correct code is usually one of these.
Questions about L30.4
- Is L30.4 a billable ICD-10-CM code?
- Yes. L30.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L30.4 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Dermatitis and eczema (L20-L30).