L74.4 — Anhidrosis
L74.4 is a billable, specific ICD-10-CM code for anhidrosis. It is valid for submission on a claim.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Hypohidrosis
Risk adjustment
L74.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
L74.4 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A57551Billing and Coding: Autonomic Function Testing
How L74.4 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L74.4.
- Anhidrosis
- Anidrosis
- Hypohidrosis, hypoidrosis
- Oligohidrosis
- Oligohydrosis
Related codes at this level
Codes that share L74. If L74.4 is not quite right, the correct code is usually one of these.
Questions about L74.4
- Is L74.4 a billable ICD-10-CM code?
- Yes. L74.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L74.4 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Disorders of skin appendages (L60-L75).