L53.9 — Erythematous condition, unspecified
L53.9 is a billable, specific ICD-10-CM code for erythematous condition, unspecified. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Erythema NOS
- Erythroderma NOS
Risk adjustment
L53.9 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
L53.9 is named in 3 Medicare coverage policies — 3 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57161Billing and Coding: Benign Skin Lesion Removal (Excludes Actinic Keratosis, and Mohs)
- A57594Billing and Coding: Non-Invasive Peripheral Venous Vascular and Hemodialysis Access Studies
- A57689Billing and Coding: Lab: Flow Cytometry
How L53.9 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 L53.9.
- Erythema, erythematous(infectional) (inflammation)
- Erythroderma(secondary)
Related codes at this level
Codes that share L53. If L53.9 is not quite right, the correct code is usually one of these.
Questions about L53.9
- Is L53.9 a billable ICD-10-CM code?
- Yes. L53.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L53.9 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Urticaria and erythema (L49-L54).