Is L12.2 a billable ICD-10-CM code?

Yes. L12.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does L12.2 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 L12.2?

L12.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above L12.2 (L12) and apply to it just the same.

L12.2

L12.2 — Chronic bullous disease of childhood

Billable / specific codeICD-10-CM

L12.2 is a billable, specific ICD-10-CM code for chronic bullous disease of childhood. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Juvenile dermatitis herpetiformis

Excludes1 inherited from the categories above L12.2

These are not written on L12.2, but they bind it: a note on a category applies to every code beneath it. Billing L12.2 with anything listed here is a denial.

Written on L12 — Pemphigoid

herpes gestationis (O26.4-)
impetigo herpetiformis (L40.1)

Other codes that can never be billed with L12.2

These codes carry an Excludes1 note pointing at L12.2. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L12.2 alone.

L13.0Dermatitis herpetiformis

Risk adjustment

L12.2 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

L12.2 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A59101Billing and Coding: Off-label Use of Rituximab and Rituximab Biosimilars

How L12.2 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 L12.2.

Disease, diseased›chronic bullous of childhood
Pemphigoid›juvenile
Dermatitis›herpetiformis›juvenile
Dermatitis›multiformis›juvenile
Dermatosis›herpetiformis›juvenile
Disease, diseased›bullous›chronic of childhood

Code history

L12.2 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 L12. If L12.2 is not quite right, the correct code is usually one of these.

Questions about L12.2

Is L12.2 a billable ICD-10-CM code?: Yes. L12.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does L12.2 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 L12.2?: L12.2 carries Excludes1 notes, which means the conditions they list can never be coded together with it on the same encounter. Some are written on the categories above L12.2 (L12) and apply to it just the same.