---
title: "ICD-10-CM H52.512: Internal ophthalmoplegia (complete)… | BillingBrief"
description: "ICD-10-CM code H52.512: Internal ophthalmoplegia (complete) (total), left eye. Category, related codes, and the official source, in plain English."
canonical: "https://billingbrief.com/icd10/h52.512/"
language: "en"
---

# H52.512 Internal ophthalmoplegia (complete) (total), left eye

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

**Official ICD-10-CM description:** Internal ophthalmoplegia (complete) (total), left 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

-   [`H52.511` Internal ophthalmoplegia (complete) (total), right eye ICD-10-CM](https://billingbrief.com/icd10/h52.511/)
-   [`H52.513` Internal ophthalmoplegia (complete) (total), bilateral ICD-10-CM](https://billingbrief.com/icd10/h52.513/)
-   [`H52.519` Internal ophthalmoplegia (complete) (total), unspecified eye ICD-10-CM](https://billingbrief.com/icd10/h52.519/)
-   [`H52.521` Paresis of accommodation, right eye ICD-10-CM](https://billingbrief.com/icd10/h52.521/)
-   [`H52.522` Paresis of accommodation, left eye ICD-10-CM](https://billingbrief.com/icd10/h52.522/)
-   [`H52.523` Paresis of accommodation, bilateral ICD-10-CM](https://billingbrief.com/icd10/h52.523/)
-   [`H52.529` Paresis of accommodation, unspecified eye ICD-10-CM](https://billingbrief.com/icd10/h52.529/)
-   [`H52.531` Spasm of accommodation, right eye ICD-10-CM](https://billingbrief.com/icd10/h52.531/)

## Common questions

### Is H52.512 a billable code?

Yes. H52.512 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/).