433 Occlusion and stenosis of precerebral arteries (433.00-433.91) ICD-9-CM
The 433.00-433.91 block classified 433 occlusion and stenosis of precerebral arteries with 12 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 433.00-433.91 Block 12 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.
- 433.00 Ocl bslr art wo infrct
- 433.01 Ocl bslr art w infrct
- 433.10 Ocl crtd art wo infrct
- 433.11 Ocl crtd art w infrct
- 433.20 Ocl vrtb art wo infrct
- 433.21 Ocl vrtb art w infrct
- 433.30 Ocl mlt bi art wo infrct
- 433.31 Ocl mlt bi art w infrct
- 433.80 Ocl spcf art wo infrct
- 433.81 Ocl spcf art w infrct
- 433.90 Ocl art NOS wo infrct
- 433.91 Ocl art NOS w infrct
Questions About This Page
Are the 433.00-433.91 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 433.00-433.91 block classify?
The block classified 433 occlusion and stenosis of precerebral arteries with 12 codes in the final ICD-9-CM release. It sat under Diseases of the circulatory system (390–459) 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.
