L13.1 – Subcorneal pustular dermatitis

ICD-10-CM 2027 diagnosis code · Bullous disorders

Billable code

ICD-10-CM code L13.1

Code: L13.1 (claims format: L131)
Description: Subcorneal pustular dermatitis
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 12. Diseases of the skin and subcutaneous tissue (L00-L99)
Block: L10-L14 Bullous disorders
Parent codes: L13

Notes for L13.1

Applicable to:

Sneddon-Wilkinson disease

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block L10-L14

Excludes1 (not coded here):

benign familial pemphigus [Hailey-Hailey] (Q82.8)
staphylococcal scalded skin syndrome (L00)
toxic epidermal necrolysis [Lyell] (L51.2)

Index terms for L13.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in L13

L13.0 – Dermatitis herpetiformisBillable
L13.8 – Other specified bullous disordersBillable
L13.9 – Bullous disorder, unspecifiedBillable

Frequently asked questions

What is ICD-10 code L13.1?

L13.1 is the ICD-10-CM code for subcorneal pustular dermatitis, in the block L10-L14 (Bullous disorders).

Is L13.1 a billable code?

Yes. L13.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does L13.1 belong to?

It belongs to category L13 – Other bullous disorders.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.