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Compare/Q25.5 vs Q27

Q25.5 vs Q27

Q25.5 (Atresia of pulmonary artery) compared with Q27 (Other congenital malformations of peripheral vascular system), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. Q27 carries an Excludes2 note covering Q25.5: “anomalies of pulmonary artery (Q25.5-Q25.7)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

Q25.5Atresia of pulmonary arteryQ27Other congenital malformations of peripheral vascular system
Billing statusBillableNon-billable header

Report instead: Q27.0, Q27.1, Q27.2, Q27.30, Q27.31

ClassificationQ00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99)Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99)
DefinitionAtresia of pulmonary artery is a billable ICD-10-CM diagnosis code (Q25.5).Other congenital malformations of peripheral vascular system is a non-billable ICD-10-CM category code (Q27).
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Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources