2027 ICD-10-CM Diagnosis Code H21.89Other specified disorders of iris and ciliary body
ICD-10-CM Codes›H00–H59›H15-H22›H21
- Billable — Valid for Submission
- Not Chronic
H21.89 is a billable ICD-10-CM diagnosis code for other specified disorders of iris and ciliary body. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified eye disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired coloboma of iris
- Acute bilateral depigmentation of iris
- Angle meshwork pigmentation
- Anterior chamber - abnormal contents
- Anterior chamber cells
- Anterior chamber deposits
- Anterior chamber flare
- Anterior chamber membrane
- Anterior chamber pale deposits
- Anterior chamber pseudo-exfoliation deposits
- Brushfield spots
- Busacca nodules
- Ciliary staphyloma
- Cyclodialysis cleft
- Deep anterior chamber of eye
- Disorder of iridocorneal angle
- Disorder of sphincter pupillae muscle
- Displacement of ciliary body
- Displacement of iris
- Disruption of ciliary body
- Disruption of iris
- Ectropion uveae
- Entropion uveae
- Evenly shallow anterior chamber of eye
- Focal lesion in iris
- Freckle of iris
- Gas in anterior chamber
- Goniodysgenesis iris ciliary body abnormal
- Iridodonesis
- Iris - Lisch nodules
- Iris hypopigmentation
- Iris nodule
- Iris nodules at pupil margin
- Iris pigmentation - finding
- Iris retroflexion
- Iris roseola
- Iris transillumination
- Iris tuck
- Iris-Koeppe nodule
- Lester sign
- Locally shallow anterior chamber of eye
- Mass in iris
- Melanin pigmentation of eye
- Non-occludable anterior chamber of eye
- Oil in anterior chamber
- Pale spots in peripheral iris
- Patent peripheral iridotomy
- Pigment dispersion syndrome
- Pigment dispersion syndrome of bilateral eyes
- Pigment dispersion syndrome of left eye
- Pigment dispersion syndrome of right eye
- Position of ciliary body - finding
- Position of iris - finding
- Primary ciliary dyskinesia and retinitis pigmentosa syndrome
- Prolapse of iris
- Pseudocoloboma of iris
- Pseudo-hypopyon
- Secondary cyst of pars plana
- Stromal iris nodules
- Traumatic cyclodialysis
- Uveal prolapse
- Vitreous in anterior chamber
- Wofflin nodules
- X-linked retinitis pigmentosa
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H21.89: its own notes plus those printed at H21 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.
- 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.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
iris (acquired) H21.89
Disease, diseased See Also: Syndrome;
specified NEC H21.89
specified NEC H21.89
Disorder (of) See Also: Disease;
specified type NEC H21.89
ciliary body NEC H21.89
iris NEC H21.89
Iridodonesis H21.89
iris (traumatic) See: Laceration, eye(ball), with prolapse or loss of interocular tissue;
nontraumatic H21.89
iris H21.89
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Eye Diseases
Even if your eyes feel healthy, you could have a problem and not know it. That's why regular eye exams are so important. Refractive errors are the most common type of vision problem that makes it hard to see clearly. But some eye conditions or diseases don't have any symptoms and can lead to a permanent loss of vision.
The full article covers:
- What diseases can affect the eye?
- What are the symptoms of eye diseases?
- Who is more likely to develop eye diseases?
- What are the treatments for eye diseases?
- Can eye diseases be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert H21.89 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H21.89Overview
What is the ICD-10 code for other specified disorders of iris and ciliary body?
The ICD-10-CM code for other specified disorders of iris and ciliary body is H21.89 (sometimes written as H2189). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H21.89 (Other specified disorders of iris and ciliary body) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other specified disorders of iris and ciliary body on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H21.89 group to?
When other specified disorders of iris and ciliary body 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 H21.89?
Under the General Equivalence Mappings, other specified disorders of iris and ciliary body converts to ICD-9-CM 364.89 (iris/ciliary disord NEC). The mapping is approximate, so confirm the match fits the documentation.
