2027 ICD-10-CM Diagnosis Code L74Eccrine sweat disorders

ICD-10-CM Codes›L00–L99›L60-L75›L74

ICD-10-CM L74
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

L74 is a non-billable ICD-10-CM category code for eccrine sweat disorders, so it cannot be submitted on claims. Use a more specific code from this category instead, such as L74.0, L74.1, L74.2, and L74.3.

Code Identity

ICD-10-CM Code
L74
Billable Status
No — Non-Billable Category
Code Describes
Eccrine sweat disorders
Short Description
Eccrine sweat disorders
Same as the full description in the CMS dataset.
Chapter
L60-L75
Disorders of skin appendages

Code Classification

ChapterL00–L99Diseases of the skin and subcutaneous tissue
SectionL60-L75Disorders of skin appendages
CategoryL74Eccrine sweat disorders
This CodeL74Eccrine sweat disorders

Specific Coding for Eccrine sweat disordersOverview

Non-specific codes like L74 require more characters. Use one of these billable codes instead:

  • Use L74.0 for Miliaria rubra

  • Use L74.1 for Miliaria crystallina

  • Use L74.2 for Miliaria profunda

  • Use L74.3 for Miliaria, unspecified

  • Use L74.4 for Anhidrosis

  • L74.5 for Focal hyperhidrosis

  • L74.51 for Primary focal hyperhidrosis

  • Use L74.52 for Secondary focal hyperhidrosis

  • Use L74.8 for Other eccrine sweat disorders

  • Use L74.9 for Eccrine sweat disorder, unspecified

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to L74: its own notes plus those printed at block L60-L75 and Chapter 12. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block L60-L75 Disorders of skin appendages applies to 85 codes
  • congenital malformations of integument (Q84.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

On L74 itself
  • generalized hyperhidrosis (R61)
From Chapter 12 (L00-L99) Diseases of the skin and subcutaneous tissue applies to 1,001 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • lipomelanotic reticulosis (I89.8)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • systemic connective tissue disorders (M30-M36)
  • viral warts (B07.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name L74, its category, or a range that includes it.

Excludes2 1

These codes carry an Excludes2 note naming L74: its condition is not part of those codes, and both may be reported when the patient has both.

  • T67 Effects of heat and light
    sweat disorder due to heat (L74-L75)

Patient EducationClinical

Skin Conditions

Your skin is your body's largest organ. It covers the entire outside of your body. There are many ways that your skin protects your body and helps keep you healthy. For example, it:

The full article covers:

  • What does your skin do?
  • What problems and conditions can affect your skin?
  • How can I keep my skin healthy?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About L74Overview

What is the ICD-10 code for eccrine sweat disorders?

L74 is the ICD-10-CM category for eccrine sweat disorders, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is L74 (Eccrine sweat disorders) a billable code?

No. This is a category header that groups the codes for eccrine sweat disorders, and headers cannot be submitted on claims. Claims for eccrine sweat disorders need a more specific code from this category, such as L74.0, L74.1, and L74.2.

Can L74 be reported with a code from Q84?

Not as a rule. The Excludes1 note at block L60-L75, which applies to L74, lists "congenital malformations of integument (Q84.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).