ICD-10-CM 2027 diagnosis code

L74Eccrine sweat disorders

Not billable — use a more specific code

L74 is a header code, so it can't be reported by itself. Choose one of the 8 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L74

L74 is the ICD-10-CM diagnosis code for eccrine sweat disorders. It belongs to block L60-L75 (disorders of skin appendages) and chapter 12 (diseases of the skin and subcutaneous tissue). It is a header code, so it can't be reported by itself; one of its 8 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: L74.0 (rubra), L74.1 (crystallina), L74.2 (profunda), L74.3 (unspecified), L74.4 (Anhidrosis), L74.5 (hyperhidrosis), L74.8 (disorders) and L74.9 (unspecified).

The conditions in its Excludes2 note aren't part of L74, but may be coded alongside it if the patient has both: generalized hyperhidrosis (R61).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under L74

Coding notes

Excludes2Not included here — may be reported together if both conditions exist

generalized hyperhidrosis (R61)

Notes that apply from higher levels

Instructions written at a parent level also apply to L74.

Broader instructions also apply from L60-L75 Disorders of skin appendages and Chapter 12: Diseases of the skin and subcutaneous tissue.

Codes whose notes reference L74

T67Excludes2

Code history

2016
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2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about L74

Is L74 billable?: No. L74 is a header code. Report one of its more specific subcodes instead.