---
title: "ICD-10-CM G47.26: Circadian rhythm sleep disorder, shift… | BillingBrief"
description: "ICD-10-CM code G47.26: Circadian rhythm sleep disorder, shift work type. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/g47.26/"
language: "en"
---

# G47.26 Circadian rhythm sleep disorder, shift work type

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

**Official ICD-10-CM description:** Circadian rhythm sleep disorder, shift work type

## Coding notes

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

### Excludes2

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

-   nightmares ([F51.5](https://billingbrief.com/icd10/f51.5/))
-   nonorganic sleep disorders (F51.-)
-   sleep terrors ([F51.4](https://billingbrief.com/icd10/f51.4/))
-   sleepwalking ([F51.3](https://billingbrief.com/icd10/f51.3/))

## Related codes

-   [`G47.20` Circadian rhythm sleep disorder, unspecified type ICD-10-CM](https://billingbrief.com/icd10/g47.20/)
-   [`G47.21` Circadian rhythm sleep disorder, delayed sleep phase type ICD-10-CM](https://billingbrief.com/icd10/g47.21/)
-   [`G47.22` Circadian rhythm sleep disorder, advanced sleep phase type ICD-10-CM](https://billingbrief.com/icd10/g47.22/)
-   [`G47.23` Circadian rhythm sleep disorder, irregular sleep wake type ICD-10-CM](https://billingbrief.com/icd10/g47.23/)
-   [`G47.24` Circadian rhythm sleep disorder, free running type ICD-10-CM](https://billingbrief.com/icd10/g47.24/)
-   [`G47.25` Circadian rhythm sleep disorder, jet lag type ICD-10-CM](https://billingbrief.com/icd10/g47.25/)
-   [`G47.27` Circadian rhythm sleep disorder in conditions classified elsewhere ICD-10-CM](https://billingbrief.com/icd10/g47.27/)
-   [`G47.29` Other circadian rhythm sleep disorder ICD-10-CM](https://billingbrief.com/icd10/g47.29/)

## Common questions

### Is G47.26 a billable code?

Yes. G47.26 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

G47 Sleep disorders

Chapter

Diseases of the nervous 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/).