---
title: "ICD-10-CM H52.209: Unspecified astigmatism, unspecified eye | BillingBrief"
description: "ICD-10-CM code H52.209: Unspecified astigmatism, unspecified eye. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/h52.209/"
language: "en"
---

# H52.209 Unspecified astigmatism, unspecified eye

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

**Official ICD-10-CM description:** Unspecified astigmatism, unspecified eye

## 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.

-   nystagmus and other irregular eye movements (H55)

## Related codes

-   [`H52.201` Unspecified astigmatism, right eye ICD-10-CM](https://billingbrief.com/icd10/h52.201/)
-   [`H52.202` Unspecified astigmatism, left eye ICD-10-CM](https://billingbrief.com/icd10/h52.202/)
-   [`H52.203` Unspecified astigmatism, bilateral ICD-10-CM](https://billingbrief.com/icd10/h52.203/)
-   [`H52.211` Irregular astigmatism, right eye ICD-10-CM](https://billingbrief.com/icd10/h52.211/)
-   [`H52.212` Irregular astigmatism, left eye ICD-10-CM](https://billingbrief.com/icd10/h52.212/)
-   [`H52.213` Irregular astigmatism, bilateral ICD-10-CM](https://billingbrief.com/icd10/h52.213/)
-   [`H52.219` Irregular astigmatism, unspecified eye ICD-10-CM](https://billingbrief.com/icd10/h52.219/)
-   [`H52.221` Regular astigmatism, right eye ICD-10-CM](https://billingbrief.com/icd10/h52.221/)

## Common questions

### Is H52.209 a billable code?

Yes. H52.209 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

H52 Disorders of refraction and accommodation

Chapter

Diseases of the eye and adnexa

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/).