U.S. ICD-10-CM · FY 2027

Z79 ICD-10-CM Code: Long term (current) drug therapy

A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.

Code definition

Official description

Z79

Long term (current) drug therapy

ICD-10-CM diagnosis code · United States clinical modification

Classification

Where Z79 sits

  1. 1

    Chapter 21

    Factors influencing health status and contact with health services (Z00-Z99)

  2. 2

    Section

    Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99)

  3. 3

    Category Z79

    Long term (current) drug therapy

  4. 4

    Code Z79

    Long term (current) drug therapy

More specific choices

Codes under Z79

Z79 is a non-billable category. Choose the child code that best matches the documented diagnosis.

Documentation details

Notes for this code

Inclusion terms

No inclusion terms are listed for Z79.

Code first

No “code first” instruction is listed for Z79.

Use additional code

No “use additional code” instruction is listed for Z79.

Excludes1

Conditions that should not be reported together with this code.

No Excludes1 note is listed for Z79.

Excludes2

Conditions not included here that may be reported separately when present.

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

Transparency

Source and release

Data release

U.S. ICD-10-CM · FY 2027

Effective date

Oct 1, 2026

This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.

Review the CDC/NCHS ICD-10-CM source

Code-specific guidance

Frequently asked questions

What does ICD-10-CM code Z79 mean?

Z79 is the FY 2027 U.S. ICD-10-CM code for “Long term (current) drug therapy.”

Is Z79 a billable or specific ICD-10-CM code?

No. Z79 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.

Where is Z79 located in ICD-10-CM?

Z79 is listed in Chapter 21, Factors influencing health status and contact with health services (Z00-Z99), within Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99) (Z77–Z99), under category Z79, Long term (current) drug therapy.

What coding notes are listed for Z79?

No inclusion terms are listed for Z79 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: drug abuse and dependence (F11-F19); drug use complicating pregnancy, childbirth, and the puerperium (O99.32-).

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