G10-G14 — Systemic atrophies primarily affecting the central nervous system
ICD-10-CM codes G10-G14 cover systemic atrophies primarily affecting the central nervous system, within diseases of the nervous system. The block holds 33 codes across 5 categories, of which 28 are billable and 5 are header codes that cannot be submitted on a claim.
Risk adjustment in G10-G14
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 200 Friedreich and Other Hereditary Ataxias; Huntington Disease
- HCC 190 Amyotrophic Lateral Sclerosis and Other Motor Neuron Disease, Spinal Muscular Atrophy
- HCC 182 Spinal Cord Disorders/Injuries
What else to watch in G10-G14
- 28 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.