2027 ICD-10-CM Diagnosis Code H30.899Other chorioretinal inflammations, unspecified eye

ICD-10-CM Codes›H00–H59›H30-H36›H30

ICD-10-CM H30.899
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

H30.899 is a billable ICD-10-CM diagnosis code for other chorioretinal inflammations, 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. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 56 closely related codes. The code is flagged as an unspecified code, since codes identifying laterality exist in the same family. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Retinal and vitreous conditions and Uveitis and ocular inflammation.

Code Identity

ICD-10-CM Code
H30.899
Billable Status
Yes — Valid for Submission
Code Describes
Other chorioretinal inflammations, unspecified eye
Short Description
Other chorioretinal inflammations, unspecified eye
Same as the full description in the CMS dataset.
Parent Code
H30.89
Other chorioretinal inflammations

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH30-H36Disorders of choroid and retina
CategoryH30Chorioretinal inflammation
This CodeH30.899Other chorioretinal inflammations, unspecified eye

Code EditsBilling

Medicare Code Editor checks that affect claim validity for H30.899.

Unspecified codes
Unspecified codes exist in the ICD-10-CM classification for circumstances when documentation in the medical record does not provide the level of detail needed to support reporting a more specific code. However, in the inpatient setting, there should generally be very limited and rare circumstances for which the laterality (right, left, bilateral) of a condition is unable to be documented and reported. The following pages contain the list of unspecified ICD-10-CM diagnosis codes for which there is a more specific code to identify laterality (right, left, bilateral) within that code family.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bacterial chorioretinitis
  • Bartonella henselae neuroretinitis
  • Birdshot chorioretinitis
  • Cerebrospinal nematodiasis
  • Choroidal granuloma
  • Cryptococcal choroiditis
  • Cryptococcus neoformans choroiditis
  • Diffuse unilateral subacute neuroretinitis
  • Fungal chorioretinitis
  • Fungal choroiditis
  • Granulomatous chorioretinitis
  • Granulomatous choroiditis
  • Granulomatous retinitis
  • Idiopathic choroiditis
  • Idiopathic posterior uveitis
  • Infection by Pneumocystis jirovecii
  • Infection causing inflammation of optic nerve
  • Infectious neuroretinitis
  • Inflammation of choroid caused by Pneumocystis jirovecii
  • Multifocal choroiditis
  • Multifocal choroiditis and panuveitis syndrome
  • Multiple evanescent white dot syndrome
  • Mycobacterium avium intracellulare group choroiditis
  • Neurobartonellosis
  • Neuroretinitis
  • Ocular cryptococcosis
  • Ocular onchocerciasis
  • Onchocerca chorioretinitis
  • Pachychoroid pigment epitheliopathy
  • Parasitic chorioretinitis
  • Parasitic infection of cranial nerve
  • Progressive outer retinal necrosis
  • Retinal pigment epitheliitis
  • Serpiginous choroiditis
  • Subretinal fibrosis
  • Subretinal fibrosis and uveitis syndrome
  • Viral retinitis
  • White dot syndrome

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to H30.899: its own notes plus those printed at 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 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.

Clinical ClassificationClinical

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

CCSR EYE005
Retinal and vitreous conditions
Default principal diagnosis: inpatient No · outpatient No
CCSR EYE004
Uveitis and ocular inflammation
Default principal diagnosis: inpatient Yes · outpatient Yes

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 H30.899 to ICD-9-CMHistory

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

ICD-9-CM
363.20 Chorioretinitis NOS
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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About H30.899Overview

What is the ICD-10 code for other chorioretinal inflammations, unspecified eye?

The ICD-10-CM code for other chorioretinal inflammations, unspecified eye is H30.899 (sometimes written as H30899). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is H30.899 (Other chorioretinal inflammations) a billable code?

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

What MS-DRG does H30.899 group to?

When other chorioretinal inflammations, 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.

Is H30.899 a CC or MCC?

CMS lists H30.899 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 56 closely related codes in its exclusion list.

What is the ICD-9 equivalent of H30.899?

Under the General Equivalence Mappings, other chorioretinal inflammations, unspecified eye converts to ICD-9-CM 363.20 (chorioretinitis NOS). The mapping is approximate, so confirm the match fits the documentation.