ICD-10-CM 2027
ICD-10 code for Hypohidrosis
From the official ICD-10-CM alphabetic index entry “Hypohidrosis, hypoidrosis”. Page updated September 29, 2026.
About coding Hypohidrosis
The ICD-10-CM code for Hypohidrosis is L74.4 (Anhidrosis).
Within L74 (eccrine sweat disorders), L74.4 is specifically for Anhidrosis. Related codes cover miliaria rubra (L74.0), miliaria crystallina (L74.1), miliaria profunda (L74.2), miliaria, unspecified (L74.3), focal hyperhidrosis (L74.5), other eccrine sweat disorders (L74.8) and eccrine sweat disorder, unspecified (L74.9).
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.
Common questions about Hypohidrosis ICD-10 codes
What is the ICD-10 code for Hypohidrosis?
- L74.4 — Anhidrosis.
Is L74.4 billable?
- Yes. L74.4 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L74.4 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L74.4 as a principal diagnosis.
Is L74.4 a CC or MCC?
- No. L74.4 is neither a CC nor an MCC under MS-DRG v44.0.