L98.4
ICD-10Non-billable categoryNon-pressure chronic ulcer of skin, not elsewhere classified
Official ICD-10-CM descriptor (FY2026)
Non-pressure chronic ulcer of skin, not elsewhere classified
L98.4 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.
Inclusion terms
- Chronic ulcer of skin NOS
- Tropical ulcer NOS
- Ulcer of skin NOS
Excludes2
Not included here. The condition is not part of this code, but a patient may have both, and both codes may be reported together.
- pressure ulcer (pressure area) (L89.-)
- gangrene (I96)
- skin infections (L00-L08)
- specific infections classified to A00-B99
- ulcer of lower limb NEC (L97.-)
- varicose ulcer (I83.0-I83.93)
ICD-10-CM FY2026 defines 8 codes beneath L98.4. See the ICD-10-CM index for what this site publishes.
Related codes in L98
- L98.0Pyogenic granuloma
- L98.1Factitial dermatitis
- L98.2Febrile neutrophilic dermatosis [Sweet]
- L98.3Eosinophilic cellulitis [Wells]
- L98.ANon-pressure chronic ulcer of upper limb, NECcategory
- L98.5Mucinosis of the skin
- L98.6Oth infiltrative disorders of the skin, subcu
- L98.7Excessive and redundant skin and subcutaneous tissue
- L98.8Oth disrd of the skin and subcutaneous tissue
- L98.9Disorder of the skin and subcutaneous tissue, unspecified
Where this code sits
- Parent code
- L98
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.