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ICD-10 diagnosis code

L98.4 Chronic ulcer of skin, not elsewhere classified

This page in Swedish

L98.4 is the ICD-10 code for Chronic ulcer of skin, not elsewhere classified. It is a four-character subcategory of L98 (Other disorders of skin and subcutaneous tissue, not elsewhere classified), the most specific level in the WHO edition. It belongs to the block L80–L99 (Other disorders of the skin and subcutaneous tissue) in Chapter XII, Diseases of the skin and subcutaneous tissue.

Code type
Subcategory (4 characters)
Chapter
XII · L00–L99
Classification
WHO ICD-10, 2019 version

What L98.4 includes

Conditions and terms that are coded here.

  • Chronic ulcer of skin NOS
  • Tropical ulcer NOS
  • Ulcer of skin NOS

What L98.4 excludes

Conditions that look similar but belong under another code.

  • decubitus [pressure] ulcer and pressure area L89.-
  • gangrene R02
  • skin infections L00-L08
  • specific infections classified to A00-B99
  • ulcer of lower limb NEC L97
  • varicose ulcer I83.0, I83.2

L98.4 in national editions

Countries report with their own edition of ICD-10. Most keep the WHO code and add more specific codes beneath it.

SwedenICD-10-SE

L98.4Kroniskt hudsår som ej klassificeras på annan plats

  • L98.4AHudsår UNS
  • L98.4BProgressivt synergistiskt gangrän [Meleney]
  • L98.4CPyoderma chancriformis (faciei)
  • L98.4DTrofiskt sår UNS
  • L98.4ETropiskt hudsår UNS
  • L98.4FUlcus phagedaenicum
  • L98.4WAnnat kroniskt hudsår som ej klassificeras på annan plats
NorwayICD-10-NO

L98.4Kronisk hudsår, ikke klassifisert annet sted

DenmarkICD-10-DK

DL984Kronisk ulcus i huden IKA

  • DL984ATropisk ulcus UNS
  • DL984BHudfissur
  • DL984CUlcus i huden UNS
  • DL984DHudfistel
  • DL984ERhagade
FinlandICD-10-FI

L98.4Muualla luokittamaton pitkäaikainen ihohaava

GermanyICD-10-GM

L98.4Chronisches Ulkus der Haut, anderenorts nicht klassifiziert

FranceICD-10-FR

L98.4Ulcérations chroniques de la peau, non classées ailleurs

NetherlandsICD-10-NL

L98.4chronisch huidulcus, niet elders geclassificeerd

United StatesICD-10-CM

Listed through more specific codes:

  • L98.411Non-pressure chronic ulcer of buttock limited to breakdown of skin
  • L98.412Non-pressure chronic ulcer of buttock with fat layer exposed
  • L98.413Non-pressure chronic ulcer of buttock with necrosis of muscle
  • L98.414Non-pressure chronic ulcer of buttock with necrosis of bone
  • L98.415Non-pressure chronic ulcer of buttock with muscle involvement without evidence of necrosis
  • L98.416Non-pressure chronic ulcer of buttock with bone involvement without evidence of necrosis
  • L98.418Non-pressure chronic ulcer of buttock with other specified severity
  • L98.419Non-pressure chronic ulcer of buttock with unspecified severity
  • and 56 more national subcodes

Based on the World Health Organization’s International Statistical Classification of Diseases and Related Health Problems, 10th revision (ICD-10), 2019 version, and the national editions published by each country’s health authority. This page is a reference, not coding advice; follow your national coding rules when you report.

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