2026 ICD-10-CM Diagnosis Code L98.499Non-pressure chronic ulcer of skin of other sites with unspecified severity

ICD-10-CM Codes›L00–L99›L80-L99›L98

ICD-10-CM L98.499
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

L98.499 is a billable ICD-10-CM diagnosis code for non-pressure chronic ulcer of skin of other sites with unspecified severity. 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
L98.499
Billable Status
Yes — Valid for Submission
Code Describes
Non-pressure chronic ulcer of skin of other sites with unspecified severity
Short Description
Non-pressure chronic ulcer of skin of sites w unsp severity
Parent Code
L98.49
Non-pressure chronic ulcer of skin of other sites

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL80-L99Other disorders of the skin and subcutaneous tissue
CategoryL98Other disorders of skin and subcutaneous tissue, not elsewhere classified
This CodeL98.499Non-pressure chronic ulcer of skin of other sites with unspecified severity

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Application site ulcer
  • BCG ulcer
  • Chronic trophic ulcer of skin
  • Chronic ulcer of skin
  • Chronic ulcer of skin due to type 1 diabetes mellitus
  • Chronic ulcer of skin of left ear
  • Chronic ulcer of skin of right ear
  • Cratered ulcer
  • Cutaneous complication of BCG immunization
  • Cutaneous streptococcal ulcer
  • Cutaneous ulceration due to cytotoxic therapy
  • Cytomegalovirus infection of skin
  • Dermatosis due to cytotoxic therapy
  • Dermatosis secondary to peripheral nerve disorder
  • Desert sore
  • Discharge from skin ulcer
  • Disorder of skin due to radiotherapy
  • Finger ulcer
  • Generalized aphthosis
  • Infected ulcer of skin
  • Infection caused by Mycobacterium bovis
  • Injection site ulcer
  • Ischemic ulcer
  • Ischemic ulcer of skin
  • Ischemic ulcer of skin due to arterial hypertension
  • Methotrexate skin ulceration
  • Mucocutaneous ulcer
  • Mucocutaneous ulcer caused by Epstein-Barr virus
  • Neuropathic ulcer
  • Neuropathic ulceration of skin caused by Mycobacterium leprae
  • Skin discharge
  • Skin ulcer
  • Skin ulcer due to diabetes mellitus
  • Skin ulcer due to type 2 diabetes mellitus
  • Skin ulcer swab taken
  • Skin ulcer with punched out edge
  • Superficial ulcer of skin
  • Syphilitic punched out ulcer
  • Trophic ulcer of skin
  • Tropical phagedenic ulcer
  • Ulcer caused by Treponema vincentii
  • Ulcer of limb due to chronic venous insufficiency
  • Ulcer of skin caused by chromium
  • Ulcer of skin caused by Cytomegalovirus
  • Ulcer of skin caused by polycyclic aromatic hydrocarbons
  • Ulcer of skin of face
  • Ulcer of skin of upper limb
  • Ulceration of skin due to radiotherapy
  • Ulceration of umbilical cord and atresia of intestine syndrome
  • Ulcerative cytomegalovirus lesion
  • Vesiculoerosive lesion

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
      • skin (atrophic) (chronic) (neurogenic) (non-healing) (perforating) (pyogenic) (trophic) (tropical)
    • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
      • skin (atrophic) (chronic) (neurogenic) (non-healing) (perforating) (pyogenic) (trophic) (tropical)
        • specified site NEC

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

Clinical InformationClinical

  • Skin Ulcer

    an ulcer of the skin and underlying tissues.

  • Ulcer

    a lesion on the surface of the skin or a mucous surface, produced by the sloughing of inflammatory necrotic tissue.

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

Read the full article at MedlinePlus

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

Convert L98.499 to ICD-9-CMHistory

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

ICD-9-CM
707.8 Chronic skin ulcer NEC
Approximate The match is approximate rather than exact.

Code History & ChangesHistory

Replaced This code was replaced in the FY 2026 code set by:

  • L98.439 - Non-prs chronic ulcer of abdomen with unspecified severity
  • L98.439 - Non-prs chronic ulcer of abdomen with unspecified severity
  • L98.439 - Non-prs chronic ulcer of abdomen with unspecified severity
  • L98.449 - Non-prs chronic ulcer of chest with unspecified severity
  • L98.449 - Non-prs chronic ulcer of chest with unspecified severity
  • L98.449 - Non-prs chronic ulcer of chest with unspecified severity
  • L98.459 - Non-pressure chronic ulcer of neck with unspecified severity
  • L98.459 - Non-pressure chronic ulcer of neck with unspecified severity
  • L98.459 - Non-pressure chronic ulcer of neck with unspecified severity
  • L98.469 - Non-pressure chronic ulcer of face with unspecified severity
  • L98.469 - Non-pressure chronic ulcer of face with unspecified severity
  • L98.469 - Non-pressure chronic ulcer of face with unspecified severity
  • L98.479 - Non-prs chronic ulcer of groin with unspecified severity
  • L98.479 - Non-prs chronic ulcer of groin with unspecified severity
  • L98.479 - Non-prs chronic ulcer of groin with unspecified severity
  • L98.A119 - Non-prs chronic ulcer of r up arm with unspecified severity
  • L98.A119 - Non-prs chronic ulcer of r up arm with unspecified severity
  • L98.A119 - Non-prs chronic ulcer of r up arm with unspecified severity
  • L98.A129 - Non-prs chronic ulcer of l up arm with unspecified severity
  • L98.A129 - Non-prs chronic ulcer of l up arm with unspecified severity
  • L98.A129 - Non-prs chronic ulcer of l up arm with unspecified severity
  • L98.A199 - Non-prs chronic ulcer of unsp upper arm with unsp severity
  • L98.A199 - Non-prs chronic ulcer of unsp upper arm with unsp severity
  • L98.A199 - Non-prs chronic ulcer of unsp upper arm with unsp severity
  • L98.A219 - Non-prs chronic ulcer of r forearm with unspecified severity
  • L98.A219 - Non-prs chronic ulcer of r forearm with unspecified severity
  • L98.A219 - Non-prs chronic ulcer of r forearm with unspecified severity
  • L98.A229 - Non-prs chronic ulcer of l forearm with unspecified severity
  • L98.A229 - Non-prs chronic ulcer of l forearm with unspecified severity
  • L98.A229 - Non-prs chronic ulcer of l forearm with unspecified severity
  • L98.A299 - Non-prs chronic ulcer of unsp forearm with unsp severity
  • L98.A299 - Non-prs chronic ulcer of unsp forearm with unsp severity
  • L98.A299 - Non-prs chronic ulcer of unsp forearm with unsp severity
  • L98.A319 - Non-prs chronic ulcer of right hand with unsp severity
  • L98.A319 - Non-prs chronic ulcer of right hand with unsp severity
  • L98.A319 - Non-prs chronic ulcer of right hand with unsp severity
  • L98.A329 - Non-prs chronic ulcer of left hand with unspecified severity
  • L98.A329 - Non-prs chronic ulcer of left hand with unspecified severity
  • L98.A329 - Non-prs chronic ulcer of left hand with unspecified severity
  • L98.A399 - Non-prs chronic ulcer of unsp hand with unspecified severity
  • L98.A399 - Non-prs chronic ulcer of unsp hand with unspecified severity
  • L98.A399 - Non-prs chronic ulcer of unsp hand with unspecified severity
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 L98.499Overview

Is L98.499 (Non-pressure chronic ulcer of skin of other sites) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report non-pressure chronic ulcer of skin of other sites with unspecified severity on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does L98.499 group to?

When non-pressure chronic ulcer of skin of other sites with unspecified severity 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 L98.499?

Under the General Equivalence Mappings, non-pressure chronic ulcer of skin of other sites with unspecified severity converts to ICD-9-CM 707.8 (chronic skin ulcer NEC). 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.