U.S. ICD-10-CM · FY 2027

Q28 ICD-10-CM Code: Other congenital malformations of circulatory system

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

Q28

Other congenital malformations of circulatory system

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where Q28 sits

  1. 1

    Chapter 17

    Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)

  2. 2

    Section

    Congenital malformations of the circulatory system (Q20-Q28)

  3. 3

    Category Q28

    Other congenital malformations of circulatory system

  4. 4

    Code Q28

    Other congenital malformations of circulatory system

More specific choices

Codes under Q28

Q28 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Q28.0

Arteriovenous malformation of precerebral vessels

Q28.1

Other malformations of precerebral vessels

Q28.2

Arteriovenous malformation of cerebral vessels

Q28.3

Other malformations of cerebral vessels

Q28.8

Other specified congenital malformations of circulatory system

Q28.9

Congenital malformation of circulatory system, unspecified

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for Q28.

Code first

No “code first” instruction is listed for Q28.

Use additional code

No “use additional code” instruction is listed for Q28.

Excludes1

Conditions that should not be reported together with this code.

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

Excludes2

Conditions not included here that may be reported separately when present.

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

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

Publisher

Vero Scribe Inc.

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code Q28 mean?

Q28 is the FY 2027 U.S. ICD-10-CM code for “Other congenital malformations of circulatory system.”

Is Q28 a billable or specific ICD-10-CM code?

No. Q28 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Q28 located in ICD-10-CM?

Q28 is listed in Chapter 17, Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1), within Congenital malformations of the circulatory system (Q20-Q28) (Q20–Q28), under category Q28, Other congenital malformations of circulatory system.

What coding notes are listed for Q28?

No inclusion terms are listed for Q28 in this reference record. No code-first instruction is listed. Excludes1 notes: congenital aneurysm NOS (Q27.8); congenital coronary aneurysm (Q24.5); ruptured cerebral arteriovenous malformation (I60.8); ruptured malformation of precerebral vessels (I72.0). Excludes2 notes: congenital peripheral aneurysm (Q27.8); congenital pulmonary aneurysm (Q25.79); congenital retinal aneurysm (Q14.1).

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