Z20-Z29 — Persons with potential health hazards related to communicable diseases
ICD-10-CM codes Z20-Z29 cover persons with potential health hazards related to communicable diseases, within factors influencing health status and contact with health services. The block holds 85 codes across 6 categories, of which 65 are billable and 20 are header codes that cannot be submitted on a claim.
Risk adjustment in Z20-Z29
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 1 HIV/AIDS
What else to watch in Z20-Z29
- 17 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.