2027 ICD-10-CM Diagnosis Code H33.192Other retinoschisis and retinal cysts, left eye
ICD-10-CM Codes›H00–H59›H30-H36›H33
- Billable — Valid for Submission
- Not Chronic
H33.192 is a billable ICD-10-CM diagnosis code for other retinoschisis and retinal cysts, left eye. 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 bullous retinoschisis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Retinal and vitreous conditions.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Bullous retinoschisis
- Bullous retinoschisis of left eye
- Flat retinoschisis
- Flat retinoschisis of left eye
- Left retinal pseudocyst
- Peripheral retinoschisis
- Primary cyst of left retina
- Primary retinal cyst
- Pseudocyst of retina
- Schisis of left retina
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H33.192: its own notes plus those printed at H33.1, H33, and Chapter 7. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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.
- 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.
- 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.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name H33.192, its category, or a range that includes it.
Use Additional Code 1
These codes say to use an additional code from the note, and H33.192 is one of the codes named.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Retinal Disorders
Retinal disorders are conditions that affect the retina, the thin light-sensitive tissue at the back of your eye. The retina senses light and sends signals to your brain so you can see.
The full article covers:
- What are retinal disorders?
- What causes retinal disorders?
- What are common retinal disorders?
- What are the symptoms of retinal disorders?
- How are retinal disorders diagnosed?
- How are retinal disorders treated?
- Can retinal disorders be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert H33.192 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H33.192Overview
What is the ICD-10 code for other retinoschisis and retinal cysts, left eye?
The ICD-10-CM code for other retinoschisis and retinal cysts, left eye is H33.192 (sometimes written as H33192). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H33.192 (Other retinoschisis and retinal cysts) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other retinoschisis and retinal cysts, left eye on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H33.192 group to?
When other retinoschisis and retinal cysts, left eye 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.
Can H33.192 be reported with Q14.1?
Not as a rule. The Excludes1 note at H33.1, which applies to H33.192, lists "congenital retinoschisis (Q14.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of H33.192?
Under the General Equivalence Mappings, other retinoschisis and retinal cysts, left eye converts to ICD-9-CM 361.19 (retinoshisis or cyst NEC). The mapping is approximate, so confirm the match fits the documentation.
