Z79.620 – Long term (current) use of immunosuppressive biologic

ICD-10-CM 2027 diagnosis code · Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Billable code

ICD-10-CM code Z79.620

Code: Z79.620 (claims format: Z79620)
Description: Long term (current) use of immunosuppressive biologic
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 21. Factors influencing health status and contact with health services (Z00-Z99)
Block: Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status
Parent codes: Z79 › Z79.6 › Z79.62

Notes for Z79.620

Applicable to:

Long term (current) use of adalimumab
Long term (current) use of etanercept
Long term (current) use of infliximab
Long term (current) use of monoclonal antibodies

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Z79 – Long term (current) drug therapy

Includes:

long term (current) drug use for prophylactic purposes

Excludes2 (not included here):

drug abuse and dependence (F11-F19)
drug use complicating pregnancy, childbirth, and the puerperium (O99.32-)

Code also:

any therapeutic drug level monitoring (Z51.81)

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

Excludes2 (not included here):

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

Block Z77-Z99

Code also:

any follow-up examination (Z08-Z09)

Index terms for Z79.620

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in Z79.62

Frequently asked questions

What is ICD-10 code Z79.620?

Z79.620 is the ICD-10-CM code for long term (current) use of immunosuppressive biologic, in the block Z77-Z99 (Persons with potential health hazards related to family and personal history and certain conditions influencing health status).

Is Z79.620 a billable code?

Yes. Z79.620 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does Z79.620 belong to?

It belongs to category Z79 – Long term (current) drug therapy.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.