2026 ICD-10-CM Diagnosis Code H33.059Total retinal detachment, unspecified eye

ICD-10-CM Codes›H00–H59›H30-H36›H33

ICD-10-CM H33.059
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H33.059 is a billable ICD-10-CM diagnosis code for total retinal detachment, unspecified 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 old retinal detachment. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Retinal and vitreous conditions.

Code Identity

ICD-10-CM Code
H33.059
Billable Status
Yes — Valid for Submission
Code Describes
Total retinal detachment, unspecified eye
Short Description
Total retinal detachment, unspecified eye
Same as the full description in the CMS dataset.
Parent Code
H33.05
Total retinal detachment

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH30-H36Disorders of choroid and retina
CategoryH33Retinal detachments and breaks
This CodeH33.059Total retinal detachment, unspecified eye

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Old retinal detachment
  • Old total retinal detachment
  • Recent retinal detachment
  • Recent total retinal detachment
  • Total retinal detachment

Clinical ClassificationClinical

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

CCSR EYE005
Retinal and vitreous conditions
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Retinal Detachment

The retina is a layer of tissue in the back of your eye that senses light and sends images to your brain. It provides the sharp, central vision needed for reading, driving, and seeing fine detail. A retinal detachment lifts or pulls the retina from its normal position.

Read the full article at MedlinePlus

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

Convert H33.059 to ICD-9-CMHistory

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

ICD-9-CM
361.05 Recent detachment, total
Approximate The match is approximate rather than exact.
ICD-9-CM
361.07 Old detachment, total
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 H33.059Overview

Is H33.059 (Total retinal detachment) a billable code?

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

What MS-DRG does H33.059 group to?

When total retinal detachment, unspecified 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 H33.059?

Under the General Equivalence Mappings, total retinal detachment, unspecified eye converts to ICD-9-CM 361.05 (recent detachment, total) and 361.07 (old detachment, total). 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.