Q23.88

Other congenital malformations of aortic and mitral valves

Billable FY2026 2025-10-01 → 2026-09-30 FY2025–2027 only

Instructional notes

No further instructional notes apply.

Index entries leading here 5

Anomaly, anomalous (congenital) (unspecified type) Q89.9
- mitral (leaflets) (valve) Q23.9
  - specified NEC Q23.88
Deformity Q89.9
- aortic
  - cusp or valve (congenital) Q23.88
Supernumerary (congenital)
- cusps, heart valve NEC Q24.8
  - aortic Q23.88
- aortic cusps Q23.88
Malformation (congenital) — see also Anomaly
- aortic valve Q23.9
  - specified NEC Q23.88
- mitral valve Q23.9
  - specified NEC Q23.88
Quadricuspid aortic valve Q23.88

Alongside this code 2 same parent — Q23.8

Q23.81 Bicuspid aortic valve Q23.82 Congenital mitral valve cleft leaflet

Medications 1

692 Congenital, Hereditary, and Neonatal Diseases and Abnormalities drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

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: Q23.8
Block: Q20-Q28
Siblings: 2

Present FY2025–FY2027.