758 Chromosomal anomalies (758.0-758.9) ICD-9-CM
The 758.0-758.9 block classified 758 chromosomal anomalies with 14 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 758.0-758.9 Block 14 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.
- 758.0 Down's syndrome
- 758.1 Patau's syndrome
- 758.2 Edwards' syndrome
- 758.31 Cri-du-chat syndrome
- 758.32 Velo-cardio-facial synd
- 758.33 Microdeletions NEC
- 758.39 Autosomal deletions NEC
- 758.4 Balance autosom transloc
- 758.5 Autosomal anomalies NEC
- 758.6 Gonadal dysgenesis
- 758.7 Klinefelter's syndrome
- 758.81 Oth cond due to sex chrm
- 758.89 Oth con d/t chrm anm NEC
- 758.9 Chromosome anomaly NOS
Questions About This Page
Are the 758.0-758.9 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 758.0-758.9 block classify?
The block classified 758 chromosomal anomalies with 14 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.
