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Q25.40

Congenital malformation of aorta unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 9 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 1 never code together
Q25.4code
Excludes1
  • hypoplasia of aorta in hypoplastic left heart syndrome (Q23.4)Q23.4

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes

No further instructional notes apply.

Index entries leading here 3
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
  • Malformation (congenital) — see also Anomaly
  • Deformity Q89.9
    • aorta (arch) (congenital) Q25.40
Alongside this code 9 same parent — Q25.4
Q25.41 Absence and aplasia of aorta Q25.42 Hypoplasia of aorta Q25.43 Congenital aneurysm of aorta Q25.44 Congenital dilation of aorta Q25.45 Double aortic arch Q25.46 Tortuous aortic arch Q25.47 Right aortic arch Q25.48 Anomalous origin of subclavian artery Q25.49 Other congenital malformations of aorta
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
Q25.4
Block
Q20-Q28
Siblings
9

Present FY2024–FY2027.