Is L13.0 a billable ICD-10-CM code?

Yes. L13.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does L13.0 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 L13.0?

L13.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

L13.0

L13.0 — Dermatitis herpetiformis

Billable / specific codeICD-10-CM

L13.0 is a billable, specific ICD-10-CM code for dermatitis herpetiformis. 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.

juvenile dermatitis herpetiformis (L12.2)
senile dermatitis herpetiformis (L12.0)

Inclusion terms

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

Duhring's disease
Hydroa herpetiformis

Risk adjustment

L13.0 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

L13.0 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.

A57063Billing and Coding: Diagnostic and Therapeutic Esophagogastroduodenoscopy
A59101Billing and Coding: Off-label Use of Rituximab and Rituximab Biosimilars
A60186Billing and Coding: Off-label Use of Rituximab and Rituximab Biosimilars

How L13.0 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 L13.0.

Brocq-Duhring disease(dermatitis herpetiformis)
Duhring's disease(dermatitis herpetiformis)
Dermatitis›herpetiformis(bullous) (erythematous) (pustular) (vesicular)
Dermatitis›multiformis
Dermatitis›neurotica
Dermatitis›polymorpha dolorosa
Dermatitis›pruriginosa
Dermatitis›trophoneurotica
Dermatosis›herpetiformis
Disease, diseased›Brocq-Duhring(dermatitis herpetiformis)
Disease, diseased›Duhring's(dermatitis herpetiformis)
Pemphigus›circinatus

Related codes at this level

Codes that share L13. If L13.0 is not quite right, the correct code is usually one of these.

Questions about L13.0

Is L13.0 a billable ICD-10-CM code?: Yes. L13.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does L13.0 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 L13.0?: L13.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.