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Q28

Non-billable

Other congenital malformations of circulatory system

Q28 is the ICD-10-CM code for Other congenital malformations of circulatory system. It is a non-billable category code — use a more specific child code such as Q28.0 for billing.

Status
Header (non-billable)
Chapter
Q00-Q99
Subcodes
6
Edition
FY2026

Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities

Excludes1 — not coded here

  • •congenital aneurysm NOS (Q27.8)
  • •congenital coronary aneurysm (Q24.5)
  • •ruptured cerebral arteriovenous malformation (I60.8)
  • •ruptured malformation of precerebral vessels (I72.0)

Excludes2 — not included here

  • •congenital peripheral aneurysm (Q27.8)
  • •congenital pulmonary aneurysm (Q25.79)
  • •congenital retinal aneurysm (Q14.1)

Frequently asked questions

What is ICD-10 code Q28?
Q28 is the ICD-10-CM code for "Other congenital malformations of circulatory system". It falls under Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities.
Is Q28 a billable code?
No — Q28 is a non-billable header code. Use a more specific child code (such as Q28.0) for billing.
What are the subcodes of Q28?
Q28 has 6 more specific child codes, including Q28.0, Q28.1, Q28.2.
What is excluded from Q28?
Excludes1 (not coded here): congenital aneurysm NOS (Q27.8); congenital coronary aneurysm (Q24.5); ruptured cerebral arteriovenous malformation (I60.8); ruptured malformation of precerebral vessels (I72.0).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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