Z79.899Billable

Other long term (current) drug therapy

Chapter
21. Factors influencing health status and contact with health services
Category
Z79
Effective date
October 1, 2026

Related codes in category Z79

Frequently asked questions

What is ICD-10 code Z79.899?

Z79.899 is an ICD-10-CM diagnosis code for Other long term (current) drug therapy.

Is Z79.899 a billable code?

Yes. Z79.899 is billable and specific enough to be used on a claim.

What ICD-10-CM chapter is Z79.899 in?

Z79.899 falls under Chapter 21: Factors influencing health status and contact with health services.

When did Z79.899 become effective?

Z79.899 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.

What other codes are related to Z79.899?

Z79.899 belongs to category Z79, which includes 12 other codes — see the related codes list on this page.

ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.