204 Lymphoid leukemia (204.00-204.92) ICD-9-CM
The 204.00-204.92 block classified 204 lymphoid leukemia with 15 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 204.00-204.92 Block 15 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.
- 204.00 Ac lym leuk wo achv rmsn
- 204.01 Act lym leuk w rmsion
- 204.02 Act lymp leuk in relapse
- 204.10 Ch lym leuk wo achv rmsn
- 204.11 Chr lym leuk w rmsion
- 204.12 Chr lymp leuk in relapse
- 204.20 Sbac lym leu wo ach rmsn
- 204.21 Sbac lym leuk w rmsion
- 204.22 Sbac lym leuk in relapse
- 204.80 Oth lym leu wo achv rmsn
- 204.81 Oth lym leuk w rmsion
- 204.82 Oth lym leuk in relapse
- 204.90 Uns lym leu wo ach rmsn
- 204.91 Uns lym leuk w rmsion
- 204.92 Lymp leuk NOS relapse
Questions About This Page
Are the 204.00-204.92 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 204.00-204.92 block classify?
The block classified 204 lymphoid leukemia with 15 codes in the final ICD-9-CM release. It sat under Neoplasms (140–239) 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.
