Disorders of refraction and accommodation (H52) ICD-10-CM
The H52 code range covers disorders of refraction and accommodation with 49 ICD-10-CM diagnosis codes. 37 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the H52 Range 49 codes · 37 billable
- H52 Disorders of refraction and accommodationNon-billable
- H52.0 HypermetropiaNon-billable
- H52.00 Hypermetropia, unspecified eye
- H52.01 Hypermetropia, right eye
- H52.02 Hypermetropia, left eye
- H52.03 Hypermetropia, bilateral
- H52.1 MyopiaNon-billable
- H52.10 Myopia, unspecified eye
- H52.11 Myopia, right eye
- H52.12 Myopia, left eye
- H52.13 Myopia, bilateral
- H52.2 AstigmatismNon-billable
- H52.20 Unspecified astigmatismNon-billable
- H52.201 Unspecified astigmatism, right eye
- H52.202 Unspecified astigmatism, left eye
- H52.203 Unspecified astigmatism, bilateral
- H52.209 Unspecified astigmatism, unspecified eye
- H52.21 Irregular astigmatismNon-billable
- H52.211 Irregular astigmatism, right eye
- H52.212 Irregular astigmatism, left eye
- H52.213 Irregular astigmatism, bilateral
- H52.219 Irregular astigmatism, unspecified eye
- H52.22 Regular astigmatismNon-billable
- H52.221 Regular astigmatism, right eye
- H52.222 Regular astigmatism, left eye
- H52.223 Regular astigmatism, bilateral
- H52.229 Regular astigmatism, unspecified eye
- H52.3 Anisometropia and aniseikoniaNon-billable
- H52.31 Anisometropia
- H52.32 Aniseikonia
- H52.4 Presbyopia
- H52.5 Disorders of accommodationNon-billable
- H52.51 Internal ophthalmoplegia (complete) (total)Non-billable
- H52.511 Internal ophthalmoplegia (complete) (total), right eye
- H52.512 Internal ophthalmoplegia (complete) (total), left eye
- H52.513 Internal ophthalmoplegia (complete) (total), bilateral
- H52.519 Internal ophthalmoplegia (complete) (total), unspecified eye
- H52.52 Paresis of accommodationNon-billable
- H52.521 Paresis of accommodation, right eye
- H52.522 Paresis of accommodation, left eye
- H52.523 Paresis of accommodation, bilateral
- H52.529 Paresis of accommodation, unspecified eye
- H52.53 Spasm of accommodationNon-billable
- H52.531 Spasm of accommodation, right eye
- H52.532 Spasm of accommodation, left eye
- H52.533 Spasm of accommodation, bilateral
- H52.539 Spasm of accommodation, unspecified eye
- H52.6 Other disorders of refraction
- H52.7 Unspecified disorder of refraction
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the H52 range.
Aniseikonia
A condition in which the ocular image of an object as seen by one eye differs in size and shape from that seen by the other.
Anisometropia
A condition of an inequality of refractive power of the two eyes.
Astigmatism
Unequal or irregular curvature of the CORNEA (Corneal astigmatism) and/or the EYE LENS (Lenticular astigmatism) resulting in REFRACTIVE ERROR.
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.
Presbyopia
The normal decreasing elasticity of the crystalline lens that leads to loss of accommodation.
About the H52 Code Range
The H52 section of ICD-10-CM covers disorders related to the eye’s ability to focus light properly, including common refractive errors like hypermetropia (farsightedness), myopia (nearsightedness), and astigmatism. These codes are used to specify the type and laterality of these vision problems for accurate medical documentation.
This group includes detailed codes for different forms of hypermetropia (also known as simple or latent farsightedness) and myopia, which can be designated for right eye, left eye, or both eyes. Various types of astigmatism—including unspecified, regular, and irregular forms—are also coded here, helping to distinguish subtle variations like high astigmatism or postoperative astigmatism. Additionally, anisometropia and aniseikonia, conditions involving unequal focus or image size between the eyes, are specified. This section also addresses presbyopia (age-related focus difficulty) and disorders of accommodation such as internal ophthalmoplegia, paresis, and spasm of accommodation, terms often linked with cycloplegia or ciliary muscle spasm. Using these codes helps healthcare providers identify the exact refractive or accommodative disorder for treatment planning and billing.
Questions About This Page
How many billable codes are in the H52 range?
Of the 49 codes in this range, 37 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the H52 range classify?
The range classifies disorders of refraction and accommodation. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
