---
title: "ICD-10-CM Z79.51: Long term (current) use of inhaled… | BillingBrief"
description: "ICD-10-CM code Z79.51: Long term (current) use of inhaled steroids. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/z79.51/"
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---

# Z79.51 Long term (current) use of inhaled steroids

ICD-10-CM · [CMS code reference](#source)

**Official ICD-10-CM description:** Long term (current) use of inhaled steroids

## Coding notes

From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.

### Includes

-   long term (current) drug use for prophylactic purposes

### Excludes2

Not part of this code, but both can be coded when both are documented.

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

### Code also

A second code may be needed. Sequencing depends on the encounter.

-   any therapeutic drug level monitoring ([Z51.81](https://billingbrief.com/icd10/z51.81/))
-   any follow-up examination (Z08-[Z09](https://billingbrief.com/icd10/z09/))

## Related codes

-   [`Z79.1` Long term (current) use of non-steroidal anti-inflammatories (NSAID) ICD-10-CM](https://billingbrief.com/icd10/z79.1/)
-   [`Z79.2` Long term (current) use of antibiotics ICD-10-CM](https://billingbrief.com/icd10/z79.2/)
-   [`Z79.3` Long term (current) use of hormonal contraceptives ICD-10-CM](https://billingbrief.com/icd10/z79.3/)
-   [`Z79.4` Long term (current) use of insulin ICD-10-CM](https://billingbrief.com/icd10/z79.4/)
-   [`Z79.52` Long term (current) use of systemic steroids ICD-10-CM](https://billingbrief.com/icd10/z79.52/)
-   [`Z79.60` Long term (current) use of unspecified immunomodulators and immunosuppressants ICD-10-CM](https://billingbrief.com/icd10/z79.60/)
-   [`Z79.61` Long term (current) use of immunomodulator ICD-10-CM](https://billingbrief.com/icd10/z79.61/)
-   [`Z79.620` Long term (current) use of immunosuppressive biologic ICD-10-CM](https://billingbrief.com/icd10/z79.620/)

## Common questions

### Is Z79.51 a billable code?

Yes. Z79.51 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.

## From the source

Official description from [CMS](https://www.cms.gov/medicare/coding-billing/icd-10-codes).
ICD-10-CM FY2027 (effective October 1, 2026).

Code set

ICD-10-CM

Category

Z79 Long term (current) drug therapy

Chapter

Factors influencing health status and contact with health services

Billable

Yes

Educational reference only. Not medical, legal, or billing advice. Always check the current official code set and payer policy before you bill. [About BillingBrief and our sources](https://billingbrief.com/about/).