Other congenital malformations of circulatory system
In Congenital malformations of the circulatory system (Q20-Q28), chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities
6 billable codes under Q28: 2 are an MCC, 4 are a CC; none map to an HCC.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment.
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Instructional notes
Excludes1: not coded here, use a different code
Official coding guidelines
From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.
Assign Q00-QA1 codes for documented congenital anomalies or genetic disorders at any age, coding non-inherent manifestations separately and sequencing Z38 first on the birth admission.
All codes under Q28
Q28 can't be used on a claim. Pick a billable code below; grey headings group them.
- Q28.0Arteriovenous malformation of precerebral vessels
- Q28.1Other malformations of precerebral vessels
- Q28.2Arteriovenous malformation of cerebral vessels
- Q28.3Other malformations of cerebral vessels
- Q28.8Other specified congenital malformations of circulatory system
- Q28.9Congenital malformation of circulatory system, unspecified
Q28 MS-DRGs
As the principal diagnosis, the billable codes under Q28 group to MS-DRG 299, 300, 301, 091, 092, or 093 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.
- DRG 299 Peripheral Vascular Disorders with MCC (4 of 6 codes)
- DRG 300 Peripheral Vascular Disorders with CC (4 of 6 codes)
- DRG 301 Peripheral Vascular Disorders without CC/MCC (4 of 6 codes)
- DRG 091 Other Disorders of Nervous System with MCC (2 of 6 codes)
- DRG 092 Other Disorders of Nervous System with CC (2 of 6 codes)
- DRG 093 Other Disorders of Nervous System without CC/MCC (2 of 6 codes)
Other codes that refer to Q28
Notes on these codes point to Q28.
About the condition
Plain-language background from MedlinePlus (National Library of Medicine), not coding guidance.
Birth Defects
A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.
Read more about birth defects on MedlinePlusCode history
Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.