L74.52 — Secondary focal hyperhidrosis
Is L74.52 billable?
Yes — L74.52 is billable for FY2027. L74.52 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. L74.52 may be submitted for encounters from October 1, 2026 through September 30, 2027.
L74.52 at a glance
| Code | L74.52 |
|---|---|
| Description | Secondary focal hyperhidrosis |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does L74.52 group to?
L74.52 sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 606Minor Skin Disorders with MCCmedical
- 607Minor Skin Disorders without MCCmedical
How is L74.52 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to L74.52. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Frey's syndrome › hyperhidrosis
- Hyperhidrosis, hyperidrosis › focal › secondary
- Hyperhidrosis, hyperidrosis › localized › secondary
- Hyperhidrosis, hyperidrosis › secondary › focal
- Syndrome › Frey's › hyperhidrosis
Inclusion terms
Alternative wording in documentation that is classified to L74.52.
- Frey's syndrome
Excludes1 — never code together — inherited from L60-L75
The conditions below can never be reported together with L74.52 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- congenital malformations of integument (Q84.-)
Excludes2 — not included here — inherited from Chapter 12
The conditions below are not part of L74.52, but a patient may have both at the same time. When documentation supports it, L74.52 and the excluded code may both be reported.
- 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.-)
Excludes2 — not included here — inherited from L74
The conditions below are not part of L74.52, but a patient may have both at the same time. When documentation supports it, L74.52 and the excluded code may both be reported.
- generalized hyperhidrosis (R61)
How long has L74.52 existed?
L74.52 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.