346 Migraine (346.00-346.93) ICD-9-CM
The 346.00-346.93 block classified 346 migraine with 40 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 346.00-346.93 Block 40 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.
- 346.00 Mgrn w aura wo ntrc mgrn
- 346.01 Mgrn w aura w ntrc mgrn
- 346.02 Mgrn w aur wo ntrc mgrn
- 346.03 Mgrn w aura w ntrc mgrn
- 346.10 Mgrn wo aura wo ntrc mgr
- 346.11 Mgrn wo aura w ntrc mgrn
- 346.12 Mgrn wo aura wo ntrc mgr
- 346.13 Mgrn wo aura w ntrc mgrn
- 346.20 Vrnt mgrn wo ntr mgr NEC
- 346.21 Vrnt mgrn w ntrc mgr NEC
- 346.22 Var mgr NEC wo ntc mgr
- 346.23 Var mgrn NEC w ntrc mgr
- 346.30 Hmplg mgr wo ntrc wo st
- 346.31 Hmplg mgrn w ntrc wo st
- 346.32 Hemplg mgr wo ntrc w st
- 346.33 Hmplg mgrn w ntrc w st
- 346.40 Menst mgr wo ntrc wo st
- 346.41 Menstl mgrn w ntrc wo st
- 346.42 Menstl mgr wo ntrc w st
- 346.43 Menstl mgrn w ntrc w st
- 346.50 Prst aura wo inf/ntr/st
- 346.51 Prs ara w ntr wo inf/st
- 346.52 Prs ara wo inf/ntr w st
- 346.53 Prs ara wo inf w ntr/st
- 346.60 Prs ara w inf wo ntr/st
- 346.61 Prs ara w/inf/ntr wo st
- 346.62 Prs ara wo ntr w inf/st
- 346.63 Prst ara w inf w ntr/st
- 346.70 Ch mgr wo ar wo nt wo st
- 346.71 Ch mgr wo ara w nt wo st
- 346.72 Ch mgr wo ara wo nt w st
- 346.73 Ch mgr wo ara w ntr w st
- 346.80 Othr migrne wo ntrc mgrn
- 346.81 Othr migrne w ntrc mgrne
- 346.82 Oth mgr wo ntrc w st mgr
- 346.83 Oth mgr w ntrc w st mgr
- 346.90 Migrne unsp wo ntrc mgrn
- 346.91 Mgrn unsp w ntrc mgr std
- 346.92 Mgr NOS wo ntrc w st mgr
- 346.93 Mgrn NOS w ntrc w st mgr
Questions About This Page
Are the 346.00-346.93 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 346.00-346.93 block classify?
The block classified 346 migraine with 40 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.
