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ICD-10-CM 2027 diagnosis code

L10.1Pemphigus vegetans

✓ Billable / specificCC — complication/comorbidity

L10.1 is a valid, billable ICD-10-CM code for pemphigus vegetans. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Neumann's disease or syndrome.

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 L10.1

L10.1 is the ICD-10-CM diagnosis code for pemphigus vegetans. It belongs to category L10 (pemphigus), 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 L10 (pemphigus), L10.1 is specifically for pemphigus vegetans. Related codes cover vulgaris (L10.0), foliaceous (L10.2), Brazilian pemphigus [fogo selvagem] (L10.3), erythematosus (L10.4), drug-induced pemphigus (L10.5), other pemphigus (L10.8) and unspecified (L10.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

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 694.4 (pemphigus).

Notes that apply from higher levels

Instructions written at a parent level also apply to L10.1.

› From L10 Pemphigus
Excludes1

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

Alphabetic index entries

3 entries

Terms in the official ICD-10-CM index that lead to L10.1.

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 →
  • 694.4Pemphigusapproximate

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 L10.1

Is L10.1 billable?

Yes. L10.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can L10.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict L10.1 as a principal diagnosis.

Is L10.1 a CC or MCC?

L10.1 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does L10.1 group to?

L10.1 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 L10.1?

The CMS General Equivalence Mappings map L10.1 to ICD-9-CM 694.4.