MCMCB Pro
Z79.6

Z79.6Long term (current) use of immunomodulators and immunosuppressants

Non-billable headerICD-10-CM

Z79.6 is a non-billable header ICD-10-CM code for long term (current) use of immunomodulators and immunosuppressants. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

  • long term (current) use of steroids (Z79.5-)
  • long term (current) use of agents affecting estrogen receptors and estrogen levels (Z79.81-)

Risk adjustment

Z79.6 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead Z79.6

6 child codes. Green means billable.

Related codes at this level

Codes that share Z79. If Z79.6 is not quite right, the correct code is usually one of these.

Questions about Z79.6

Is Z79.6 a billable ICD-10-CM code?
No. Z79.6 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Z79.6 sit in the tabular list?
Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.