ICD-10-CM 2027
ICD-10 code for refraction disorder
From the official ICD-10-CM alphabetic index entry “Disorder (of) › refraction”. Page updated September 29, 2026.
About coding refraction disorder
The ICD-10-CM code for refraction disorder is H52.7 (Unspecified disorder of refraction). The official index lists 4 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on H52.7.
Within H52, choose H52.7 (Unspecified disorder of refraction) only when documentation doesn't support a more specific option: Hypermetropia (H52.0), myopia (H52.1), astigmatism (H52.2), Anisometropia and aniseikonia (H52.3), Presbyopia (H52.4), disorders of accommodation (H52.5) and other disorders of refraction (H52.6).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 124 (Other Disorders of the Eye with MCC or Thrombolytic Agent, relative weight 1.2471) and DRG 125 (Other Disorders of the Eye without MCC, relative weight 0.7702), in MDC 02 (Diseases and Disorders of the Eye), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific refraction disorder codes (official index)
Common questions about refraction disorder ICD-10 codes
What is the ICD-10 code for refraction disorder?
- H52.7 — Unspecified disorder of refraction. More specific codes apply when the documentation supports them: H52.32, H52.31, H52.4, H52.6.
What is the ICD-10 code for aniseikonia refraction disorder?
- H52.32 — Aniseikonia.
What is the ICD-10 code for anisometropia refraction disorder?
- H52.31 — Anisometropia.
What is the ICD-10 code for presbyopia refraction disorder?
- H52.4 — Presbyopia.
Is H52.7 billable?
- Yes. H52.7 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can H52.7 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict H52.7 as a principal diagnosis.
Is H52.7 a CC or MCC?
- No. H52.7 is neither a CC nor an MCC under MS-DRG v44.0.