2026 ICD-10-CM Diagnosis Code H26.009Unspecified infantile and juvenile cataract, unspecified eye

ICD-10-CM Codes›H00–H59›H25-H28›H26

ICD-10-CM H26.009
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

H26.009 is a billable ICD-10-CM diagnosis code for unspecified infantile and juvenile cataract, 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. The code is restricted by the Medicare Code Editor to pediatric patients (age 0 through 17). In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Cataract and other lens disorders.

Code Identity

ICD-10-CM Code
H26.009
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified infantile and juvenile cataract, unspecified eye
Short Description
Unspecified infantile and juvenile cataract, unspecified eye
Same as the full description in the CMS dataset.
Parent Code
H26.00
Unspecified infantile and juvenile cataract

Code Classification

ChapterH00–H59Diseases of the eye and adnexa
SectionH25-H28Disorders of lens
CategoryH26Other cataract
This CodeH26.009Unspecified infantile and juvenile cataract, unspecified eye

Code EditsBilling

Medicare Code Editor checks that affect claim validity for H26.009.

Pediatric diagnoses
The Medicare Code Editor detects inconsistencies in pediatric cases by checking a patient's age and any diagnosis on the patient's record. The pediatric code edits apply to patients age range is 0–17 years inclusive (e.g., Reye's syndrome, routine child health exam).

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Anterior capsular lens opacities
  • Anterior lens opacities
  • Anterior subcapsular lens opacities
  • Body height below reference range
  • Cataract
  • Cataract maturity - finding
  • Cataract present
  • Cataract, growth hormone deficiency, sensory neuropathy, sensorineural hearing loss, skeletal dysplasia syndrome
  • Congenital anomaly of macula
  • Congenital hypoplasia of fovea centralis
  • Congenital hypoplasia of macula lutea
  • Congenital hypoplasia of retina
  • Congenital muscular dystrophy with infantile cataract and hypogonadism syndrome
  • Congenital nystagmus
  • Cortical lens opacities
  • Cupuliform cataract
  • Early opacity of lens
  • Familial renal glucosuria
  • Foveal hypoplasia with presenile cataract syndrome
  • Hereditary growth hormone deficiency
  • Hereditary sensory neuropathy
  • Infantile and/or juvenile cataract
  • Infantile cataract
  • Interlenticular opacification
  • Juvenile cataract
  • Juvenile cataract, microcornea, renal glucosuria syndrome
  • Microcornea
  • Microcornea, rod-cone dystrophy, cataract, posterior staphyloma syndrome
  • Nonsenile cataract
  • Presenile cataract
  • Renal glycosuria
  • Retinitis pigmentosa, juvenile cataract, short stature, intellectual disability syndrome
  • Sensory neuropathy
  • Spontaneous reabsorption of cataract

Clinical ClassificationClinical

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

CCSR EYE002
Cataract and other lens disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Capsule Opacification

    clouding or loss of transparency of the posterior lens capsule, usually following cataract extraction.

  • Cataract

    partial or complete opacity on or in the lens or capsule of one or both eyes, impairing vision or causing blindness. the many kinds of cataract are classified by their morphology (size, shape, location) or etiology (cause and time of occurrence). (dorland, 27th ed)

  • Cataract Extraction

    the removal of a cataractous crystalline lens from the eye.

  • Microcornea

    a congenital abnormality characterized by an abnormally small cornea. the horizontal corneal diameter is less than 10mm or less than 9mm in newborns. it is associated with an increased risk of glaucoma.

Patient EducationClinical

Cataract

A cataract is a clouding of the lens in your eye. It affects your vision. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.

Read the full article at MedlinePlus

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

Convert H26.009 to ICD-9-CMHistory

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

ICD-9-CM
366.00 Nonsenile cataract 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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About H26.009Overview

Is H26.009 (Unspecified infantile and juvenile cataract) a billable code?

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

What MS-DRG does H26.009 group to?

When unspecified infantile and juvenile cataract, 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.

Who can H26.009 be reported for?

The Medicare Code Editor checks unspecified infantile and juvenile cataract, unspecified eye against patient demographics: this code is intended for pediatric patients (age 0 through 17). Claims outside these limits are flagged as inconsistent.

What is the ICD-9 equivalent of H26.009?

Under the General Equivalence Mappings, unspecified infantile and juvenile cataract, unspecified eye converts to ICD-9-CM 366.00 (nonsenile cataract NOS). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.