441 Aortic aneurysm and dissection (441.00-441.9) ICD-9-CM
The 441.00-441.9 block classified 441 aortic aneurysm and dissection 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 441.00-441.9 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.
- 441.00 Dsct of aorta unsp site
- 441.01 Dsct of thoracic aorta
- 441.02 Dsct of abdominal aorta
- 441.03 Dsct of thoracoabd aorta
- 441.1 Ruptur thoracic aneurysm
- 441.2 Thoracic aortic aneurysm
- 441.3 Rupt abd aortic aneurysm
- 441.4 Abdom aortic aneurysm
- 441.5 Rupt aortic aneurysm NOS
- 441.6 Thoracoabd aneurysm rupt
- 441.7 Thracabd anurysm wo rupt
- 441.9 Aortic aneurysm NOS
Questions About This Page
Are the 441.00-441.9 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 441.00-441.9 block classify?
The block classified 441 aortic aneurysm and dissection 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.
