2027 ICD-10-CM Diagnosis Code H20.049Secondary noninfectious iridocyclitis, unspecified eye
ICD-10-CM Codes›H00–H59›H15-H22›H20
- Billable — Valid for Submission
- Not Chronic
H20.049 is a billable ICD-10-CM diagnosis code for secondary noninfectious iridocyclitis, unspecified 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 cidofovir-induced anterior uveitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Uveitis and ocular inflammation.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cidofovir-induced anterior uveitis
- Drug-induced uveitis
- Metipranolol-induced anterior uveitis
- Noninfectious secondary iritis
- Pamidronic acid-induced uveitis
- Rifabutin-induced anterior uveitis
- Secondary noninfectious iridocyclitis
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to H20.049: its own notes plus those printed at H20.0 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.
- iridocyclitis, iritis, uveitis (due to) (in) diabetes mellitus (E08-E13 with .39)
- iridocyclitis, iritis, uveitis (due to) (in) diphtheria (A36.89)
- iridocyclitis, iritis, uveitis (due to) (in) gonococcal (A54.32)
- iridocyclitis, iritis, uveitis (due to) (in) herpes (simplex) (B00.51)
- iridocyclitis, iritis, uveitis (due to) (in) herpes zoster (B02.32)
- iridocyclitis, iritis, uveitis (due to) (in) late congenital syphilis (A50.39)
- iridocyclitis, iritis, uveitis (due to) (in) late syphilis (A52.71)
- iridocyclitis, iritis, uveitis (due to) (in) sarcoidosis (D86.83)
- iridocyclitis, iritis, uveitis (due to) (in) syphilis (A51.43)
- iridocyclitis, iritis, uveitis (due to) (in) toxoplasmosis (B58.09)
- iridocyclitis, iritis, uveitis (due to) (in) tuberculosis (A18.54)
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.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Iridocyclitis
acute or chronic inflammation of the iris and ciliary body characterized by exudates into the anterior chamber, discoloration of the iris, and constricted, sluggish pupil. symptoms include radiating pain, photophobia, lacrimation, and interference with vision.
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 H20.049 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About H20.049Overview
What is the ICD-10 code for secondary noninfectious iridocyclitis, unspecified eye?
The ICD-10-CM code for secondary noninfectious iridocyclitis, unspecified eye is H20.049 (sometimes written as H20049). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is H20.049 (Secondary noninfectious iridocyclitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report secondary noninfectious iridocyclitis, unspecified eye on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does H20.049 group to?
When secondary noninfectious iridocyclitis, unspecified 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 H20.049 be reported with A36.89?
Not as a rule. The Excludes1 note at H20.0, which applies to H20.049, lists "iridocyclitis, iritis, uveitis (due to) (in) diphtheria (A36.89)". 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 H20.049?
Under the General Equivalence Mappings, secondary noninfectious iridocyclitis, unspecified eye converts to ICD-9-CM 364.04 (second iritis, noninfec). The mapping is approximate, so confirm the match fits the documentation.
