ICD-10-CM 2027
ICD-10 code for miliaria
From the official ICD-10-CM alphabetic index entry “Miliaria”. Page updated September 29, 2026.
About coding miliaria
The ICD-10-CM code for miliaria is L74.3 (Miliaria, unspecified). The official index lists 6 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L74.3.
Within L74, choose L74.3 (Miliaria, unspecified) only when documentation doesn't support a more specific option: miliaria rubra (L74.0), miliaria crystallina (L74.1), miliaria profunda (L74.2), Anhidrosis (L74.4), 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.
More specific miliaria codes (official index)
Common questions about miliaria ICD-10 codes
What is the ICD-10 code for miliaria?
- L74.3 — Miliaria, unspecified. More specific codes apply when the documentation supports them: L74.1, L75.2, L74.1, L74.2 and others below.
What is the ICD-10 code for alba miliaria?
- L74.1 — Miliaria crystallina.
What is the ICD-10 code for apocrine miliaria?
- L75.2 — Apocrine miliaria.
What is the ICD-10 code for crystallina miliaria?
- L74.1 — Miliaria crystallina.
What is the ICD-10 code for profunda miliaria?
- L74.2 — Miliaria profunda.
What is the ICD-10 code for rubra miliaria?
- L74.0 — Miliaria rubra.
What is the ICD-10 code for tropicalis miliaria?
- L74.2 — Miliaria profunda.
Is L74.3 billable?
- Yes. L74.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L74.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L74.3 as a principal diagnosis.
Is L74.3 a CC or MCC?
- No. L74.3 is neither a CC nor an MCC under MS-DRG v44.0.