K22.0 vs Q39.5
K22.0 (Achalasia of cardia) compared with Q39.5 (Congenital dilatation of esophagus), from the official CMS tabular data. Do not report these codes together: the official tabular list marks them Excludes1.
Can these codes be reported together?
No — do not report together. K22.0 carries an Excludes1 note covering Q39.5: “congenital cardiospasm (Q39.5)”
Sole exception: when the two conditions are documented as unrelated to each other (ICD-10-CM Official Guidelines, Section I.A.12.a).
Side by side
| K22.0Achalasia of cardia | Q39.5Congenital dilatation of esophagus | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | K00-K95 — Diseases of the Digestive System (K00-K95) | Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99) |
| Definition | Achalasia of cardia is a billable ICD-10-CM diagnosis code (K22.0). | Congenital dilatation of esophagus is a billable ICD-10-CM diagnosis code (Q39.5). |
| Includes | Achalasia NOS Cardiospasm | Congenital cardiospasm |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources