ICD-10 K59.4
Billable / SpecificAnal spasm
About ICD-10-CM K59.4
ICD-10-CM code K59.4 represents Anal spasm. This is a billable/specific code in the Digestive System chapter (block K59). The 2026 edition of ICD-10-CM K59.4 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under K59.4. Per CMS ICD-10-CM Tabular 2026.
- Proctalgia fugax
Medicare LCD Coverage for K59.4
Local Coverage Determinations (LCDs) from CMS MACs that list K59.4 as a covered diagnosis.
Showing top 10 of 210 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K59.4.
5 Medicare
1 Aetna
CPT Codes Commonly Billed with K59.4
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
- 91125 CMS LCD: Billing and Coding: Pelvic Floor Dysfunction: Anorectal Manometry and EMG CMS LCD
Convert K59.4 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| K59.4 | 5646 | 00000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To K59.4
Other codes in section K55-K64 (Other diseases of intestines).
ICD-10 K59.4, Billing FAQ
Is ICD-10 code K59.4 billable? +
Yes, K59.4 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to K59.4? +
ICD-10 K59.4 includes: Proctalgia fugax.
What CPT codes are commonly billed with K59.4? +
Procedures frequently paired with K59.4 include: 91125.
What ICD-9 codes does K59.4 map to? +
Per CMS GEMs, K59.4 maps to ICD-9 codes: 5646. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on July 16, 2026.
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