2026 ICD-10-CM Diagnosis Code H52.12Myopia, left eye

ICD-10-CM Codes›H00–H59›H49-H52›H52

ICD-10-CM H52.12
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H52.12 is a billable ICD-10-CM diagnosis code for myopia, left eye. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 124 through 125. Coders also document this condition as myopia of left eye. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Refractive error.

Code Identity

ICD-10-CM Code
H52.12
Billable Status
Yes — Valid for Submission
Code Describes
Myopia, left eye
Short Description
Myopia, left eye
Same as the full description in the CMS dataset.
Parent Code
H52.1
Myopia

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH49-H52Disorders of ocular muscles, binocular movement, accommodation and refraction
CategoryH52Disorders of refraction and accommodation
This CodeH52.12Myopia, left eye

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Myopia of left eye

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR EYE009
Refractive error
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Myopia

    a refractive error in which rays of light entering the eye parallel to the optic axis are brought to a focus in front of the retina when accommodation (accommodation, ocular) is relaxed. this results from an overly curved cornea or from the eyeball being too long from front to back. it is also called nearsightedness.

  • Myopia, Degenerative

    excessive axial myopia associated with complications (especially posterior staphyloma and choroidal neovascularization) that can lead to blindness.

Patient EducationClinical

Refractive Errors

The cornea and lens of your eye helps you focus. Refractive errors are vision problems that happen when the shape of the eye keeps you from focusing well. The cause could be the length of the eyeball (longer or shorter), changes in the shape of the cornea, or aging of the lens.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert H52.12 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
367.1 Myopia
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H52.12Overview

Is H52.12 (Myopia) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report myopia, left eye on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does H52.12 group to?

When myopia, left eye is the principal diagnosis on an inpatient stay, it groups to MS-DRG 124, 125, with relative weights from 0.7678 to 1.3231 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H52.12?

Under the General Equivalence Mappings, myopia, left eye converts to ICD-9-CM 367.1 (myopia). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.