L11.0 — Acquired keratosis follicularis
L11.0 is a billable, specific ICD-10-CM code for acquired keratosis follicularis. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- keratosis follicularis (congenital) [Darier-White] (Q82.8)
Risk adjustment
L11.0 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
L11.0 is named in 6 Medicare coverage policies — 6 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57044Billing and Coding: Removal of Benign Skin Lesions
- A57161Billing and Coding: Benign Skin Lesion Removal (Excludes Actinic Keratosis, and Mohs)
- A57193Billing and Coding: Routine Foot Care and Debridement of Nails
- A57482Billing and Coding: Removal of Benign Skin Lesions
How L11.0 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 L11.0.
- Keratosis›follicularis›acquired
Related codes at this level
Codes that share L11. If L11.0 is not quite right, the correct code is usually one of these.
Questions about L11.0
- Is L11.0 a billable ICD-10-CM code?
- Yes. L11.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L11.0 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Bullous disorders (L10-L14).
- What cannot be coded together with L11.0?
- L11.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.