2026 ICD-10-CM Diagnosis Code L94.6Ainhum

ICD-10-CM Codes›L00–L99›L80-L99›L94

ICD-10-CM L94.6
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L94.6 is a billable ICD-10-CM diagnosis code for ainhum. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 867 through 869. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified skin disorders.

Code Identity

ICD-10-CM Code
L94.6
Billable Status
Yes — Valid for Submission
Code Describes
Ainhum
Short Description
Ainhum
Same as the full description in the CMS dataset.
Parent Code
L94
Other localized connective tissue disorders

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL94Other localized connective tissue disorders
This CodeL94.6Ainhum

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Ainhum
  • Ainhum of fifth toe

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Ainhum(disease)
    • Dactylolysis spontanea(ainhum)
    • Disease, diseased
      • ainhum

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR SKN007
Other specified and unspecified skin disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Ainhum

    spontaneous autoamputation of the fourth or fifth toe.

Convert L94.6 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
136.0 Ainhum
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About L94.6Overview

Is L94.6 (Other localized connective tissue disorders) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report ainhum on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does L94.6 group to?

When ainhum is the principal diagnosis on an inpatient stay, it groups to MS-DRG 867, 868, 869, with relative weights from 0.7297 to 2.0932 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of L94.6?

Under the General Equivalence Mappings, ainhum converts to ICD-9-CM 136.0 (ainhum). The mapping is a direct match.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.