2027 ICD-10-CM Diagnosis Code H52.7Unspecified disorder of refraction

ICD-10-CM Codes›H00–H59›H49-H52›H52

ICD-10-CM H52.7
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H52.7 is a billable ICD-10-CM diagnosis code for unspecified disorder of refraction. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125. Coders also document this condition as disorder of accommodation. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Refractive error.

Code Identity

ICD-10-CM Code
H52.7
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified disorder of refraction
Short Description
Unspecified disorder of refraction
Same as the full description in the CMS dataset.
Parent Code
H52
Disorders of refraction and accommodation

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 CodeH52.7Unspecified disorder of refraction

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Disorder of accommodation
  • Disorder of refraction
  • Disorder of refraction AND/OR accommodation
  • Finding related to focusing
  • Ocular accommodation - finding
  • Pilodental dysplasia, refractive errors syndrome
  • Poor focus
  • Problem of visual accommodation
  • Quality of focus - finding
  • Toxic disorder of refraction AND/OR accommodation

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H52.7: its own notes plus those printed at block H49-H52 and Chapter 7. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block H49-H52 Disorders of ocular muscles, binocular movement, accommodation and refraction applies to 150 codes
  • nystagmus and other irregular eye movements (H55)
From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • diabetes mellitus related eye conditions (E09.3-, E10.3-, E11.3-, E13.3-)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury (trauma) of eye and orbit (S05.-)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • syphilis related eye disorders (A50.01, A50.3-, A51.43, A52.71)

Notes

General instructions on how these codes are used.

From Chapter 7 (H00-H59) Diseases of the eye and adnexa applies to 2,677 codes
  • Use an external cause code following the code for the eye condition, if applicable, to identify the cause of the eye condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

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

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

Patient EducationClinical

Eye Movement Disorders

When you look at an object, you're using several muscles to move both eyes to focus on it. If you have a problem with the muscles, the eyes don't work properly.

Read the full article at MedlinePlus

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

Convert H52.7 to ICD-9-CMHistory

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

ICD-9-CM
367.9 Refraction disorder NOS
Exact Match The mapping is direct, with no qualifiers.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H52.7Overview

What is the ICD-10 code for unspecified disorder of refraction?

The ICD-10-CM code for unspecified disorder of refraction is H52.7 (sometimes written as H527). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is H52.7 (Disorders of refraction and accommodation) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified disorder of refraction on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does H52.7 group to?

When unspecified disorder of refraction is the principal diagnosis on an inpatient stay, it groups to MS-DRG 125, 124, with relative weights from 0.7699 to 1.2470 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of H52.7?

Under the General Equivalence Mappings, unspecified disorder of refraction converts to ICD-9-CM 367.9 (refraction disorder NOS). The mapping is a direct match.