2026 ICD-10-CM Diagnosis Code L97.825Non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis

ICD-10-CM Codes›L00–L99›L80-L99›L97

ICD-10-CM L97.825
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L97.825 is a billable ICD-10-CM diagnosis code for non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 573 through 575, 592 through 594. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Non-pressure ulcer of skin.

Code Identity

ICD-10-CM Code
L97.825
Billable Status
Yes — Valid for Submission
Code Describes
Non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis
Short Description
Non-prs chr ulc oth prt l low leg w msl invl w/o evd of necr
Parent Code
L97.82
Non-pressure chronic ulcer of other part of left lower leg

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL97Non-pressure chronic ulcer of lower limb, not elsewhere classified
This CodeL97.825Non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis

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.

    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • lower limb (atrophic) (chronic) (neurogenic) (perforating) (pyogenic) (trophic) (tropical)
        • lower leg NOS
          • specified site NEC
            • left
              • with
                • muscle involvement without evidence of necrosis

Clinical ClassificationClinical

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

CCSR SKN004
Non-pressure ulcer of skin
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Leg Injuries and Disorders

Your legs are made up of bones, blood vessels, muscles, and other connective tissue. They are important for motion and standing. Playing sports, running, falling, or having an accident can damage your legs. Common leg injuries include sprains and strains, joint dislocations, and fractures (broken bones).

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert L97.825 to ICD-9-CMHistory

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

ICD-9-CM
707.19 Ulcer oth part low limb
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replacement L97.825 replaces the following previously assigned code(s):

  • L97.829 - Non-pressure chronic ulcer oth prt l low leg w unsp severity
FY 2018AddedAdded to the ICD-10-CM code setEffective October 1, 2017.
FY 2019–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About L97.825Overview

Is L97.825 (Non-pressure chronic ulcer of other part of left lower leg) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does L97.825 group to?

When non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis is the principal diagnosis on an inpatient stay, it groups to MS-DRG 573, 574, 575, 592, 593, 594, with relative weights from 0.8668 to 6.5514 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of L97.825?

Under the General Equivalence Mappings, non-pressure chronic ulcer of other part of left lower leg with muscle involvement without evidence of necrosis converts to ICD-9-CM 707.19 (ulcer oth part low limb). The mapping is approximate, so confirm the match fits the documentation.

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.