L74.4 ICD-10-CA code: Anhidrosis
L74.4 is the ICD-10-CA code for “Anhidrosis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
L74.4Anhidrosis
ICD-10-CA · Canada · Also written L744
Index terms
Entries in CIHI’s alphabetical index that lead to L74.4. Searching the index by the condition the note names is how coders reach this code.
- Anidrosis
- Oligohidrosis
- Hypohidrosis, hypoidrosis
Notes for L74.4
As CIHI prints them, with any note L74.4 takes from the headings above it.
Includes
- Hypohidrosis
Excludes
Conditions classified elsewhere.
- Hyperhidrosis (R61.-)From L74 Eccrine sweat disorders
- Congenital malformations of integument (Q84.-)From L60-L75 Disorders of skin appendages
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)lipomelanotic reticulosis (I89.8)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)systemic connective tissue disorders (M30-M36)From Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
Where L74.4 sits
- 1ChapterChapter 12: Diseases of the skin and subcutaneous tissue (L00-L99)
- 2Block L60-L75Disorders of skin appendages
- 3Category L74Eccrine sweat disorders
- 4Valid code L74.4Anhidrosis
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code L74.4 mean?
L74.4 is the ICD-10-CA code for “Anhidrosis” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is L74.4 in ICD-10-CA?
L74.4 sits under L74 Eccrine sweat disorders, within L60-L75 Disorders of skin appendages, within Chapter 12: Diseases of the skin and subcutaneous tissue (L00-L99).
What coding notes apply to L74.4?
ICD-10-CA lists Includes, Excludes notes for L74.4, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.