ICD-10-CM
ICD-10 code for Frey's syndrome hyperhidrosis: L74.52
The ICD-10-CM index points "Frey's syndrome hyperhidrosis" to L74.52, Secondary focal hyperhidrosis. L74.52 is a billable code.
Source: CDC ICD-10-CM FY2027 Alphabetic Index file dated June 16, 2026. Publisher page
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More specific codes in L74
A header groups codes and is not billed. A billable code is one you can report.
- L74Eccrine sweat disordersHeader
- L74.0Miliaria rubraBillable
- L74.1Miliaria crystallinaBillable
- L74.2Miliaria profundaBillable
- L74.3Miliaria, unspecifiedBillable
- L74.4AnhidrosisBillable
- L74.5Focal hyperhidrosisHeader
- L74.51Primary focal hyperhidrosisHeader
- L74.510Primary focal hyperhidrosis, axillaBillable
- L74.511Primary focal hyperhidrosis, faceBillable
- L74.512Primary focal hyperhidrosis, palmsBillable
- L74.513Primary focal hyperhidrosis, solesBillable
- L74.519Primary focal hyperhidrosis, unspecifiedBillable
- L74.52Secondary focal hyperhidrosisBillable
- L74.8Other eccrine sweat disordersBillable
- L74.9Eccrine sweat disorder, unspecifiedBillable
Excludes2
Excludes2 means the other condition can be reported with this one when both are documented.
From L74. A note on a category applies to every code under it.
Related conditions
Related pages
- L74.52 code detailsNotes, nearby codes, CMS-HCC group
- Category L74Every code under it
- Chapter 12Diseases of the skin and subcutaneous tissue
- ICD-10 codes by conditionA to Z
- Check a list of ICD-10 codes
- Denial code CO-11Diagnosis does not support the procedure
- Denial code CO-146Diagnosis invalid for the date of service
- HCPCS Level II code lookup
Questions
What is the ICD-10 code for Frey's syndrome hyperhidrosis?
The ICD-10-CM index points "Frey's syndrome hyperhidrosis" to L74.52, Secondary focal hyperhidrosis. L74.52 is a billable code.
Is L74.52 billable?
Yes. L74.52 is a billable code in the FY2027 ICD-10-CM file. Use a more specific code when the record documents one.
What documentation notes apply to L74.52?
The CDC tabular list gives 1 Excludes2 note (may be coded together when both are documented) for L74.52 and the categories above it. They are listed on this page.
What chapter is L74.52 in?
Chapter 12. Diseases of the skin and subcutaneous tissue.
When do ICD-10-CM codes change?
Every October 1, with the new fiscal year file. Some years add April 1 updates. This page uses the FY2027 file, effective October 1, 2026.