345 Epilepsy (345.00-345.91) ICD-9-CM
The 345.00-345.91 block classified 345 epilepsy with 18 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 345.00-345.91 Block 18 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.
- 345.00 Gen noncv ep w/o intr ep
- 345.01 Gen nonconv ep w intr ep
- 345.10 Gen cnv epil w/o intr ep
- 345.11 Gen cnv epil w intr epil
- 345.2 Petit mal status
- 345.3 Grand mal status
- 345.40 Psymotr epil w/o int epi
- 345.41 Psymotr epil w intr epil
- 345.50 Part epil w/o intr epil
- 345.51 Part epil w intr epil
- 345.60 Inf spasm w/o intr epil
- 345.61 Inf spasm w intract epil
- 345.70 Epil par cont w/o int ep
- 345.71 Epil par cont w intr epi
- 345.80 Epilep NEC w/o intr epil
- 345.81 Epilepsy NEC w intr epil
- 345.90 Epilep NOS w/o intr epil
- 345.91 Epilepsy NOS w intr epil
Questions About This Page
Are the 345.00-345.91 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 345.00-345.91 block classify?
The block classified 345 epilepsy with 18 codes in the final ICD-9-CM release. It sat under Diseases of the nervous system (320–359) 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.
