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L98.4 ICD-10-CA code: Chronic ulcer of skin, not elsewhere classified

L98.4 is the ICD-10-CA code for “Chronic ulcer of skin, not elsewhere classified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.

Official description

L98.4

Chronic ulcer of skin, not elsewhere classified

Short description: Chronic ulcer of skin NEC

ICD-10-CA · Canada · Also written L984

Index terms

Entries in CIHI’s alphabetical index that lead to L98.4. Searching the index by the condition the note names is how coders reach this code.

  • Naga sore
  • Sore, Naga
  • Veldt sore
  • Rot, Barcoo
  • Sore, veldt
  • Desert, sore
  • Sore, desert
  • Sore, tropical
  • Barcoo disease or rot
  • Phagedena (dry) (moist), tropical
  • Meleney's, ulcer (chronic undermining)
  • Sloughing (multiple) (phagedena) (skin), ulcer
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative, tropical NEC
  • Meleney's, gangrene (cutaneous) (progressive bacterial synergistic)
  • Gangrene, gangrenous (dry) (moist) (skin) (ulcer), Meleney's (synergistic)
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative, perforating NEC, skin
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative, Meleney's (chronic undermining)
  • Infection, infected (opportunistic), local, skin (staphylococcal) (streptococcal), ulcer
  • Infection, infected (opportunistic), skin (local) (staphylococcal) (streptococcal), ulcer
  • Meleney's, gangrene (cutaneous) (progressive bacterial synergistic), with diabetes mellitus
  • Gangrene, gangrenous (dry) (moist) (skin) (ulcer), Meleney's (synergistic), with (in) diabetes mellitus
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative, tropical NEC, in (due to) (with) diabetes mellitus
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative, Meleney's (chronic undermining), diabetes, diabetic
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerative, skin (atrophic) (chronic) (neurogenic) (perforating) (pyogenic) (trophic)

Notes for L98.4

As CIHI prints them, with any note L98.4 takes from the headings above it.

Includes

  • Chronic ulcer of skin NOSTropical ulcer NOSUlcer of skin NOS

Use additional code

Add a code for this detail when the note documents it.

  • Use additional code from category (E10-E14) with fourth and fifth characters .68 to classify any associated diabetes mellitus.

Excludes

Conditions classified elsewhere.

  • Decubitus [pressure] ulcer and pressure area (L89.-)gangrene (R02)skin infections (L00-L08)specific infections classified to A00-B99ulcer of lower limb NEC (L97)varicose ulcer (I83.0, I83.2)
  • Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)lipomelanotic reticulosis (I89.8)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)From Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)

Where L98.4 sits

  1. 1ChapterChapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
  2. 2Block L80-L99Other disorders of the skin and subcutaneous tissue
  3. 3Category L98Other disorders of skin and subcutaneous tissue, not elsewhere classified
  4. 4Valid code L98.4Chronic ulcer of skin, not elsewhere classified

Source and release

Data release
ICD-10-CA · FY 2026–2027
Effective date
Apr 1, 2026
Publisher
CIHI

This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.

See L98.4 in the CIHI source

Frequently asked questions

What does ICD-10-CA code L98.4 mean?

L98.4 is the ICD-10-CA code for “Chronic ulcer of skin, not elsewhere classified” in CIHI’s ICD-10-CA FY 2026–2027 release.

Where is L98.4 in ICD-10-CA?

L98.4 sits under L98 Other disorders of skin and subcutaneous tissue, not elsewhere classified, within L80-L99 Other disorders of the skin and subcutaneous tissue, within Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99).

What coding notes apply to L98.4?

ICD-10-CA lists Includes, Use additional code, Excludes notes for L98.4, including those from the headings it sits under. They are listed on this page with where each one comes from.

Which ICD-10-CA release does this page use?

It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.

Codes beside L98.4

L98.0Pyogenic granulomaL98.1Factitial dermatitisL98.2Febrile neutrophilic dermatosis [Sweet]L98.3Eosinophilic cellulitis [Wells]L98.5Mucinosis of skinL98.6Other infiltrative disorders of skin and subcutaneous tissueL98.7Excessive and redundant skin and subcutaneous tissueL98.8Other specified disorders of skin and subcutaneous tissueL98.9Disorder of skin and subcutaneous tissue, unspecified