ICD-10-CM Code L12.2

Chronic bullous disease of childhood

Version 2020 Billable Code Pediatric Diagnoses

Valid for Submission

L12.2 is a billable code used to specify a medical diagnosis of chronic bullous disease of childhood. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code L12.2 might also be used to specify conditions or terms like bullous eruption, bullous eruption of childhood, childhood bullous pemphigoid, chronic localized pemphigoid, conjunctivitis associated with autoimmune skin disorder, conjunctivitis associated with dermatitis herpetiformis, etc

The code L12.2 is applicable for patients aged 0 through 17 years inclusive. It is clinically and virtually impossible to use this code on a patient outside the stated age range.

Short Description:Chronic bullous disease of childhood
Long Description:Chronic bullous disease of childhood

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code L12.2:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Juvenile dermatitis herpetiformis

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code L12.2 are found in the index:

Code Edits

The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:

  • Pediatric diagnoses - Pediatric. Age range is 0–17 years inclusive (e.g., Reye’s syndrome, routine child health exam).


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Bullous eruption
  • Bullous eruption of childhood
  • Childhood bullous pemphigoid
  • Chronic localized pemphigoid
  • Conjunctivitis associated with autoimmune skin disorder
  • Conjunctivitis associated with dermatitis herpetiformis
  • Dermatitis herpetiformis
  • Herpetiform eruption
  • Hydroa herpetiformis
  • Juvenile dermatitis herpetiformis
  • Juvenile pemphigoid
  • Oral mucosal involvement by dermatitis herpetiformis
  • Pemphigoid
  • Vesicular eruption

Clinical Information

  • LINEAR IGA BULLOUS DERMATOSIS-. autoimmune disease characterized by subepidermal blisters and linear deposition of autoantibodies at the dermoepidermal junction. the accumulated autoantibodies are of immunoglobulin a and occasionally immunoglobulin g classes against epidermal basement membrane proteins. the dermatosis is sometimes associated with malignancies and use of certain drugs e.g. vancomycin.

Diagnostic Related Groups

The ICD-10 code L12.2 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert L12.2 to ICD-9

  • 694.2 - Juven dermat herpetiform

Code Classification

  • Diseases of the skin and subcutaneous tissue (L00–L99)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Pemphigus is an autoimmune disorder. If you have it, your immune system attacks healthy cells in your skin and mouth, causing blisters and sores. No one knows the cause. Pemphigus does not spread from person to person. It does not appear to be inherited. But some people's genes put them more at risk for pemphigus.

Pemphigoid is also an autoimmune skin disease. It leads to deep blisters that do not break easily. Pemphigoid is most common in older adults and may be fatal for older, sick patients.

Doctors diagnose pemphigus with a physical exam, a biopsy, and blood tests. The treatment of pemphigus and pemphigoid is the same: one or more medicines to control symptoms. These may include

  • Steroids, which reduce inflammation
  • Drugs that suppress the immune system response
  • Antibiotics to treat associated infections

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

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