ICD-10 K22.0
Billable / SpecificAchalasia of cardia
About ICD-10-CM K22.0
ICD-10-CM code K22.0 represents Achalasia of cardia. This is a billable/specific code in the Digestive System chapter (block K22). The 2026 edition of ICD-10-CM K22.0 became effective on October 1, 2025.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under K22.0. Per CMS ICD-10-CM Tabular 2026.
- Achalasia NOS
- Cardiospasm
Type 1 Excludes
Pure excludes, these codes can never be coded together with K22.0. The conditions are mutually exclusive (e.g., congenital vs acquired forms).
- congenital cardiospasm (Q39.5)
Medicare LCD Coverage for K22.0
Local Coverage Determinations (LCDs) from CMS MACs that list K22.0 as a covered diagnosis.
Showing top 10 of 713 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing K22.0.
5 Medicare
Convert K22.0 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 |
|---|---|---|
| K22.0 | 5300 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To K22.0
Other codes in section K20-K31 (Diseases of esophagus, stomach and duodenum).
ICD-10 K22.0, Billing FAQ
Is ICD-10 code K22.0 billable? +
Yes, K22.0 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 K22.0? +
ICD-10 K22.0 includes: Achalasia NOS; Cardiospasm.
What codes are Type 1 Excludes for K22.0? +
Type 1 Excludes (never code together with K22.0): congenital cardiospasm (Q39.5)
What CPT codes are commonly billed with K22.0? +
Procedures frequently paired with K22.0 include: 43753, 43497.
What ICD-9 codes does K22.0 map to? +
Per CMS GEMs, K22.0 maps to ICD-9 codes: 5300. 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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