G20-G26 — Extrapyramidal and movement disorders
ICD-10-CM codes G20-G26 cover extrapyramidal and movement disorders, within diseases of the nervous system. The block holds 58 codes across 6 categories, of which 46 are billable and 12 are header codes that cannot be submitted on a claim.
Risk adjustment in G20-G26
0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.
- HCC 199 Parkinson and Other Degenerative Disease of Basal Ganglia
What else to watch in G20-G26
- 45 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.