Secondary parkinsonism G21
The ICD10 code for the diagnosis "Secondary parkinsonism" is "G21". G21 is NOT a 'valid' or 'billable' ICD10 code. Please select a more specific diagnosis below.
- G21 should not be used for reimbursement purposes. Please select a more specific diagnosis below.
- The 2019 edition of ICD-10-CM G21 became effective on October 1, 2018.
- This is the American ICD-10-CM version of G21 - other international versions of ICD-10 G21 may differ.
Type 1 Excludes:
Codes: = Billable
- G21 Secondary parkinsonism
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.