---
title: "ICD-10-CM J45.31: Mild persistent asthma with (acute)… | BillingBrief"
description: "ICD-10-CM code J45.31: Mild persistent asthma with (acute) exacerbation. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/j45.31/"
language: "en"
---

# J45.31 Mild persistent asthma with (acute) exacerbation

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

**Official ICD-10-CM description:** Mild persistent asthma with (acute) exacerbation

## Related codes

-   [`J45.20` Mild intermittent asthma, uncomplicated ICD-10-CM](https://billingbrief.com/icd10/j45.20/)
-   [`J45.21` Mild intermittent asthma with (acute) exacerbation ICD-10-CM](https://billingbrief.com/icd10/j45.21/)
-   [`J45.22` Mild intermittent asthma with status asthmaticus ICD-10-CM](https://billingbrief.com/icd10/j45.22/)
-   [`J45.30` Mild persistent asthma, uncomplicated ICD-10-CM](https://billingbrief.com/icd10/j45.30/)
-   [`J45.32` Mild persistent asthma with status asthmaticus ICD-10-CM](https://billingbrief.com/icd10/j45.32/)
-   [`J45.40` Moderate persistent asthma, uncomplicated ICD-10-CM](https://billingbrief.com/icd10/j45.40/)
-   [`J45.41` Moderate persistent asthma with (acute) exacerbation ICD-10-CM](https://billingbrief.com/icd10/j45.41/)
-   [`J45.42` Moderate persistent asthma with status asthmaticus ICD-10-CM](https://billingbrief.com/icd10/j45.42/)

## Common questions

### Is J45.31 a billable code?

Yes. J45.31 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

J45 Asthma

Chapter

Diseases of the respiratory system

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/).