746 Other congenital anomalies of heart (746.00-746.9) ICD-9-CM
The 746.00-746.9 block classified 746 other congenital anomalies of heart with 20 legacy diagnosis codes. None remain valid for claim submission; each code below links to its reference page with the official ICD-10-CM replacement under the CMS General Equivalence Mappings.
Retired Code Set
ICD-9-CM stopped being valid for U.S. claims with dates of service on or after October 1, 2015, when ICD-10-CM replaced it. Use this index for historical lookups and crosswalking; for current coding, start from the ICD-10-CM codes list or the ICD-9 / ICD-10 converter.
Legacy Codes in the 746.00-746.9 Block 20 codes
None of these codes remain valid for claim submission. Each code page shows its ICD-10-CM replacement under the CMS General Equivalence Mappings.
- 746.00 Pulmonary valve anom NOS
- 746.01 Cong pulmon valv atresia
- 746.02 Cong pulmon valve stenos
- 746.09 Pulmonary valve anom NEC
- 746.1 Cong tricusp atres/sten
- 746.2 Ebstein's anomaly
- 746.3 Cong aorta valv stenosis
- 746.4 Cong aorta valv insuffic
- 746.5 Congen mitral stenosis
- 746.6 Cong mitral insufficienc
- 746.7 Hypoplas left heart synd
- 746.81 Cong subaortic stenosis
- 746.82 Cor triatriatum
- 746.83 Infundib pulmon stenosis
- 746.84 Obstruct heart anom NEC
- 746.85 Coronary artery anomaly
- 746.86 Congenital heart block
- 746.87 Malposition of heart
- 746.89 Cong heart anomaly NEC
- 746.9 Cong heart anomaly NOS
Questions About This Page
Are the 746.00-746.9 codes still billable?
No. Every code in this block became invalid for U.S. claims after September 30, 2015. Each code page linked above shows the ICD-10-CM replacement CMS assigned in the General Equivalence Mappings, and the ICD-9 / ICD-10 converter translates any of them directly.
What did the 746.00-746.9 block classify?
The block classified 746 other congenital anomalies of heart with 20 codes in the final ICD-9-CM release. It sat under Congenital anomalies (740–759) in the legacy hierarchy.
Related References
Source: final CMS ICD-9-CM release (version date October 1, 2014). Retired from U.S. claims after September 30, 2015.
