ICD-10-CM 2027
ICD-10 code for acanthosis
From the official ICD-10-CM alphabetic index entry “Acanthosis (acquired) (nigricans)”. Page updated September 29, 2026.
About coding acanthosis
The ICD-10-CM code for acanthosis is L83 (Acanthosis nigricans). The official index lists 5 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L83.
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.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
More specific acanthosis codes (official index)
Common questions about acanthosis ICD-10 codes
What is the ICD-10 code for acanthosis?
- L83 — Acanthosis nigricans. More specific codes apply when the documentation supports them: Q82.8, Q82.8, L82.1, L82.0 and others below.
What is the ICD-10 code for benign acanthosis?
- Q82.8 — Other specified congenital malformations of skin.
What is the ICD-10 code for congenital acanthosis?
- Q82.8 — Other specified congenital malformations of skin.
What is the ICD-10 code for seborrheic acanthosis?
- L82.1 — Other seborrheic keratosis.
What is the ICD-10 code for tongue acanthosis?
- K14.3 — Hypertrophy of tongue papillae.
Is L83 billable?
- Yes. L83 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L83 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L83 as a principal diagnosis.
Is L83 a CC or MCC?
- No. L83 is neither a CC nor an MCC under MS-DRG v44.0.