ICD-10-CM 2027
ICD-10 code for skin disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › skin”. Page updated September 29, 2026.
About coding skin disorder
The ICD-10-CM code for skin disorder is L98.9 (Disorder of the skin and subcutaneous tissue, unspecified). The official index lists 11 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 skin disorder codes (official index)
- atrophic L90.9 — Atrophic disorder of skin, unspecified
- specified NEC L90.8 — Other atrophic disorders of skin
- granulomatous L92.9 — Granulomatous disorder of the skin and subcutaneous tissue, unspecified
- specified NEC L92.8 — Other granulomatous disorders of the skin and subcutaneous tissue
- hypertrophic L91.9 — Hypertrophic disorder of the skin, unspecified
- specified NEC L91.8 — Other hypertrophic disorders of the skin
- infiltrative NEC L98.6 — Other infiltrative disorders of the skin and subcutaneous tissue
- newborn P83.9 — Condition of the integument specific to newborn, unspecified
- specified NEC P83.88 — Other specified conditions of integument specific to newborn
- picking F42.4 — Excoriation (skin-picking) disorder
- psychogenic (allergic) (eczematous) F54 — Psychological and behavioral factors associated with disorders or diseases classified elsewhere
Common questions about skin disorder ICD-10 codes
What is the ICD-10 code for skin disorder?
- L98.9 — Disorder of the skin and subcutaneous tissue, unspecified. More specific codes apply when the documentation supports them: L90.9, L90.8, L92.9, L92.8 and others below.
What is the ICD-10 code for atrophic skin disorder?
- L90.9 — Atrophic disorder of skin, unspecified.
What is the ICD-10 code for granulomatous skin disorder?
- L92.9 — Granulomatous disorder of the skin and subcutaneous tissue, unspecified.
What is the ICD-10 code for hypertrophic skin disorder?
- L91.9 — Hypertrophic disorder of the skin, unspecified.
What is the ICD-10 code for infiltrative nec skin disorder?
- L98.6 — Other infiltrative disorders of the skin and subcutaneous tissue.
What is the ICD-10 code for newborn skin disorder?
- P83.9 — Condition of the integument specific to newborn, unspecified.
What is the ICD-10 code for picking skin disorder?
- F42.4 — Excoriation (skin-picking) disorder.
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.