ICD-10-CM 2027
ICD-10 code for dermatosis
From the official ICD-10-CM alphabetic index entry “Dermatosis”. Page updated September 29, 2026.
About coding dermatosis
The ICD-10-CM code for dermatosis is L98.9 (Disorder of the skin and subcutaneous tissue, unspecified). The official index lists 21 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L98.9.
Within L98, choose L98.9 (Disorder of the skin and subcutaneous tissue, unspecified) only when documentation doesn't support a more specific option: pyogenic granuloma (L98.0), Factitial dermatitis (L98.1), febrile neutrophilic dermatosis [Sweet] (L98.2), eosinophilic cellulitis [Wells] (L98.3), Non-pressure chronic ulcer of skin, not elsewhere classified (L98.4), Mucinosis of the skin (L98.5), other infiltrative disorders of the skin and subcutaneous tissue (L98.6), excessive and redundant skin and subcutaneous tissue (L98.7) and 2 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 606 (Minor Skin Disorders with MCC, relative weight 1.5728) and DRG 607 (Minor Skin Disorders without MCC, relative weight 0.8772), in MDC 09 (Diseases and Disorders of the Skin, Subcutaneous Tissue and Breast), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific dermatosis codes (official index)
- Andrews' L08.89 — Other specified local infections of the skin and subcutaneous tissue
- Bowen's
- bullous L13.9 — Bullous disorder, unspecified
- specified NEC L13.8 — Other specified bullous disorders
- exfoliativa L26 — Exfoliative dermatitis
- eyelid (noninfectious) H01.9 — Unspecified inflammation of eyelid
- discoid lupus erythematosus
- xeroderma
- factitial L98.1 — Factitial dermatitis
- febrile neutrophilic L98.2 — Febrile neutrophilic dermatosis [Sweet]
- gonococcal A54.89 — Other gonococcal infections
- herpetiformis L13.0 — Dermatitis herpetiformis
- juvenile L12.2 — Chronic bullous disease of childhood
- linear IgA L13.8 — Other specified bullous disorders
- menstrual NEC L98.8 — Other specified disorders of the skin and subcutaneous tissue
- neutrophilic, febrile L98.2 — Febrile neutrophilic dermatosis [Sweet]
- occupational
- papulosa nigra L82.1 — Other seborrheic keratosis
- pigmentary L81.9 — Disorder of pigmentation, unspecified
- progressive L81.7 — Pigmented purpuric dermatosis
- Schamberg's L81.7 — Pigmented purpuric dermatosis
- psychogenic F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere
- purpuric, pigmented L81.7 — Pigmented purpuric dermatosis
- pustular, subcorneal L13.1 — Subcorneal pustular dermatitis
- transient acantholytic L11.1 — Transient acantholytic dermatosis [Grover]
Common questions about dermatosis ICD-10 codes
What is the ICD-10 code for dermatosis?
- L98.9 — Disorder of the skin and subcutaneous tissue, unspecified. More specific codes apply when the documentation supports them: L08.89, L13.9, L13.8, L26 and others below.
What is the ICD-10 code for andrews' dermatosis?
- L08.89 — Other specified local infections of the skin and subcutaneous tissue.
What is the ICD-10 code for bullous dermatosis?
- L13.9 — Bullous disorder, unspecified.
What is the ICD-10 code for exfoliativa dermatosis?
- L26 — Exfoliative dermatitis.
What is the ICD-10 code for eyelid dermatosis?
- H01.9 — Unspecified inflammation of eyelid.
What is the ICD-10 code for factitial dermatosis?
- L98.1 — Factitial dermatitis.
What is the ICD-10 code for febrile neutrophilic dermatosis?
- L98.2 — Febrile neutrophilic dermatosis [Sweet].
Is L98.9 billable?
- Yes. L98.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L98.9 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L98.9 as a principal diagnosis.
Is L98.9 a CC or MCC?
- No. L98.9 is neither a CC nor an MCC under MS-DRG v44.0.