Z79.62CurrentCategory · further specificity required

Long term (current) use of immunosuppressant

Z77-Z99 · Inherited instructions

Code also

any follow-up examination (Z08-Z09)

Z79 · Inherited instructions

Code also

any therapeutic drug level monitoring (Z51.81)

Excludes 2 · 4

Z79 · Long term (current) drug therapy

Excludes 2

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

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

Excludes 2

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

More specific codes

Z79.620Long term (current) use of immunosuppressive biologic Z79.621Long term (current) use of calcineurin inhibitor Z79.622Long term (current) use of Janus kinase inhibitor Z79.623Long term (current) use of mammalian target of rapamycin (mTOR) inhibitor Z79.624Long term (current) use of inhibitors of nucleotide synthesis

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Use the service date for outpatient/professional claims and the discharge date for hospital inpatient claims. Earlier encounters use ICD-9-CM; each individual code must also be valid for the applicable date.

Official coding guidelines → · CMS ↗

First observed · 2022-10-01

Code history

Latest recorded change · FY2023

ChangedUnchanged

FY2023

Effective from 2022-10-01

Added

Long term (current) use of immunosuppressant

Category — select a more specific code

CDC/NCHS · FY2023

All editions (9)

All editions	Effective from	Code history
FY2023	2022-10-01	Added
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	No tabular change
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	No tabular change
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code-level instructions

The official Tabular List has no additional instructions at this code level.

Review the instructions inherited from its parent categories below. Inherited instructions ↓

Review the official coding guidelines ↗

Inherited instructions

Chapters 21 · Factors influencing health status and contact with health services (Z00-Z99)

Note

Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

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

Code also

any follow-up examination (Z08-Z09)

Z79 · Long term (current) drug therapy

Includes

long term (current) drug use for prophylactic purposes

Excludes 2

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

Excludes 2

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

More specific codes

Z79.620Long term (current) use of immunosuppressive biologicBillable / specific Z79.621Long term (current) use of calcineurin inhibitorBillable / specific Z79.622Long term (current) use of Janus kinase inhibitorBillable / specific Z79.623Long term (current) use of mammalian target of rapamycin (mTOR) inhibitorBillable / specific Z79.624Long term (current) use of inhibitors of nucleotide synthesisBillable / specific

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
Z79.60	Long term (current) use of unspecified immunomodulators and immunosuppressants	Billable / specific
Z79.61	Long term (current) use of immunomodulator	Billable / specific
Z79.63	Long term (current) use of chemotherapeutic agent	Category · further specificity required
Z79.64	Long term (current) use of myelosuppressive agent	Billable / specific
Z79.69	Long term (current) use of other immunomodulators and immunosuppressants	Billable / specific

Official titles and instructions are preserved in their source language. Official sources ↗

Z79.62CurrentCategory · further specificity required

Long term (current) use of immunosuppressant

Z77-Z99 · Inherited instructions

Code also

any follow-up examination (Z08-Z09)

Z79 · Inherited instructions

Code also

any therapeutic drug level monitoring (Z51.81)

Excludes 2 · 4

Z79 · Long term (current) drug therapy

Excludes 2

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

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

Excludes 2

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

More specific codes

Claims & coverage

When ICD-10-CM is required

For US diagnosis claims covered by HIPAA, ICD-10-CM is required from October 1, 2015.

Official coding guidelines → · CMS ↗

First observed · 2022-10-01

Code history

Latest recorded change · FY2023

ChangedUnchanged

FY2023

Effective from 2022-10-01

Added

Long term (current) use of immunosuppressant

Category — select a more specific code

CDC/NCHS · FY2023

All editions (9)

All editions	Effective from	Code history
FY2023	2022-10-01	Added
FY2023 · 04-01	2023-04-01	No tabular change
FY2024	2023-10-01	No tabular change
FY2024 · 04-01	2024-04-01	No tabular change
FY2025	2024-10-01	No tabular change
FY2025 · 04-01	2025-04-01	No tabular change
FY2026	2025-10-01	No tabular change
FY2026 · April	2026-04-01	No tabular change
FY2027	2026-10-01	No tabular change

Code-level instructions

The official Tabular List has no additional instructions at this code level.

Review the instructions inherited from its parent categories below. Inherited instructions ↓

Review the official coding guidelines ↗

Inherited instructions

Chapters 21 · Factors influencing health status and contact with health services (Z00-Z99)

Note

Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

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

Code also

any follow-up examination (Z08-Z09)

Z79 · Long term (current) drug therapy

Includes

long term (current) drug use for prophylactic purposes

Excludes 2

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

Excludes 2

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

More specific codes

Related codes

Other entries in the same category; these are not automatic substitutes.

Code	Description	Category · further specificity required
Z79.60	Long term (current) use of unspecified immunomodulators and immunosuppressants	Billable / specific
Z79.61	Long term (current) use of immunomodulator	Billable / specific
Z79.63	Long term (current) use of chemotherapeutic agent	Category · further specificity required
Z79.64	Long term (current) use of myelosuppressive agent	Billable / specific
Z79.69	Long term (current) use of other immunomodulators and immunosuppressants	Billable / specific

Official titles and instructions are preserved in their source language. Official sources ↗