Q89.3
ICD-10BillableSitus inversus
Official ICD-10-CM descriptor (FY2026)
Situs inversus
Q89.3 is valid for submission on a claim — CMS flags it as a billable, specific code.
Inclusion terms
- Dextrocardia with situs inversus
- Mirror-image atrial arrangement with situs inversus
- Situs inversus or transversus abdominalis
- Situs inversus or transversus thoracis
- Transposition of abdominal viscera
- Transposition of thoracic viscera
Excludes1
Not coded here. An Excludes1 code should never be reported at the same time as the code above it.
- dextrocardia NOS (Q24.0)
Related codes in Q89
- Q89.0Congenital absence and malformations of spleencategory
- Q89.1Congenital malformations of adrenal gland
- Q89.2Congenital malformations of other endocrine glands
- Q89.4Conjoined twins
- Q89.7Multiple congenital malformations, not elsewhere classified
- Q89.8Other specified congenital malformationscategory
- Q89.9Congenital malformation, unspecified
Where this code sits
- Parent code
- Q89
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ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.