333 Other extrapyramidal disease and abnormal movement disorders (333.0-333.99) ICD-9-CM
The 333.0-333.99 block classified 333 other extrapyramidal disease and abnormal movement disorders with 22 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 333.0-333.99 Block 22 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.
- 333.0 Degen basal ganglia NEC
- 333.1 Tremor NEC
- 333.2 Myoclonus
- 333.3 Tics of organic origin
- 333.4 Huntington's chorea
- 333.5 Chorea NEC
- 333.6 Genetic torsion dystonia
- 333.71 Athetoid cerebral palsy
- 333.72 Acute dystonia d/t drugs
- 333.79 Acq torsion dystonia NEC
- 333.81 Blepharospasm
- 333.82 Orofacial dyskinesia
- 333.83 Spasmodic torticollis
- 333.84 Organic writers' cramp
- 333.85 Subac dyskinesa d/t drug
- 333.89 Fragm torsion dyston NEC
- 333.90 Extrapyramidal dis NOS
- 333.91 Stiff-man syndrome
- 333.92 Neuroleptic malgnt synd
- 333.93 Bnign shuddering attacks
- 333.94 Restless legs syndrome
- 333.99 Extrapyramidal dis NEC
Questions About This Page
Are the 333.0-333.99 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 333.0-333.99 block classify?
The block classified 333 other extrapyramidal disease and abnormal movement disorders with 22 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.
