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ICD-10-CM 2027 diagnosis code

L12.1Cicatricial pemphigoid

✓ Billable / specific

L12.1 is a valid, billable ICD-10-CM code for cicatricial pemphigoid. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L12.1

L12.1 is the ICD-10-CM diagnosis code for cicatricial pemphigoid. It belongs to category L12 (pemphigoid), block L10-L14 (bullous disorders) and chapter 12 (diseases of the skin and subcutaneous tissue). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within L12 (pemphigoid), L12.1 is specifically for cicatricial pemphigoid. Related codes cover bullous pemphigoid (L12.0), chronic bullous disease of childhood (L12.2), acquired epidermolysis bullosa (L12.3), other pemphigoid (L12.8) and unspecified (L12.9).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 595 (Major Skin Disorders with MCC, relative weight 2.0239) and DRG 596 (Major Skin Disorders without MCC, relative weight 1.1071), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 694.60 (benign mucous membrane pemphigoid without mention of ocular involvement) and 694.61 (benign mucous membrane pemphigoid with ocular involvement).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Benign mucous membrane pemphigoid

Notes that apply from higher levels

Instructions written at a parent level also apply to L12.1.

› From L12 Pemphigoid
Excludes1
  • herpes gestationis (O26.4-)
  • impetigo herpetiformis (L40.1)

Broader instructions also apply from L10-L14 Bullous disorders and Chapter 12: Diseases of the skin and subcutaneous tissue.

Alphabetic index entries

6 entries

Terms in the official ICD-10-CM index that lead to L12.1.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 09 · Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast

ICD-9-CM equivalent

Converter →
  • 694.60Benign mucous membrane pemphigoid without mention of ocular involvementapproximate
  • 694.61Benign mucous membrane pemphigoid with ocular involvementapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about L12.1

Is L12.1 billable?

Yes. L12.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can L12.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict L12.1 as a principal diagnosis.

Is L12.1 a CC or MCC?

No. L12.1 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does L12.1 group to?

L12.1 is used in the MS-DRG v44.0 logic for MS-DRG 595 (Major Skin Disorders with MCC) and MS-DRG 596 (Major Skin Disorders without MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for L12.1?

The CMS General Equivalence Mappings map L12.1 to ICD-9-CM 694.60 and 694.61.