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Q25.79 vs Q28

Q25.79 (Other congenital malformations of pulmonary artery) compared with Q28 (Other congenital malformations of circulatory 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. Q28 carries an Excludes2 note covering Q25.79: “congenital pulmonary aneurysm (Q25.79)”

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

Side by side

Q25.79Other congenital malformations of pulmonary arteryQ28Other congenital malformations of circulatory system
Billing statusBillableNon-billable header

Report instead: Q28.0, Q28.1, Q28.2, Q28.3, Q28.8

ClassificationQ00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99)Q00-Q99 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99)
DefinitionOther congenital malformations of pulmonary artery is a billable ICD-10-CM diagnosis code (Q25.79).Other congenital malformations of circulatory system is a non-billable ICD-10-CM category code (Q28).
Includes
Aberrant pulmonary artery
Agenesis of pulmonary artery
Congenital aneurysm of pulmonary artery
Congenital anomaly of pulmonary artery

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources