ICD10BillableValid for clinical use

ICD-10 Code H26.492: Other secondary cataract, left eye

H26.492 is a billable ICD-10 diagnosis code used to classify Other secondary cataract, left eye in medical records and claims. You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records. ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the eye and adnexa (H00-H59).

Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026

What is this code?

ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Diseases of the eye and adnexa (H00-H59).

When is it used?

  • May be used when a clinician documents other secondary cataract, left eye in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code can be used as a clinically usable diagnosis entry in standardized coding workflows.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.

Code hierarchy

chapter
7Diseases of the eye and adnexa (H00-H59)
block
H25-H28Disorders of lens
category
H26Other cataract
category
H26.4Secondary cataract
category
H26.49Other secondary cataract
currentH26.49

Where you may see this code

You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.

Related specialists

Ophthalmologist

Coverage-related procedures and services

CPT 66988high
EXTRACAPSULAR CATARACT REMOVAL WITH INSERTION OF INTRAOCULAR LENS PROSTHESIS (1 STAGE PROCEDURE), MANUAL OR MECHANICAL TECHNIQUE (EG, IRRIGATION AND ASPIRATION OR PHACOEMULSIFICATION); WITH ENDOSCOPIC CYCLOPHOTOCOAGULATION
Source: CMS coverage guidance
CPT 66984high
EXTRACAPSULAR CATARACT REMOVAL WITH INSERTION OF INTRAOCULAR LENS PROSTHESIS (1 STAGE PROCEDURE), MANUAL OR MECHANICAL TECHNIQUE (EG, IRRIGATION AND ASPIRATION OR PHACOEMULSIFICATION); WITHOUT ENDOSCOPIC CYCLOPHOTOCOAGULATION
Source: CMS coverage guidance
CPT 66983high
INTRACAPSULAR CATARACT EXTRACTION WITH INSERTION OF INTRAOCULAR LENS PROSTHESIS (1 STAGE PROCEDURE)
Source: CMS coverage guidance
CPT 66840high
REMOVAL OF LENS MATERIAL; ASPIRATION TECHNIQUE, 1 OR MORE STAGES
Source: CMS coverage guidance
CPT 66940high
REMOVAL OF LENS MATERIAL; EXTRACAPSULAR (OTHER THAN 66840, 66850, 66852)
Source: CMS coverage guidance
CPT 66920high
REMOVAL OF LENS MATERIAL; INTRACAPSULAR
Source: CMS coverage guidance

Coding guidelines

Common synonyms

Other secondary cataract, left eye

Frequently asked questions

Code details

CodeH26.492
SystemICD10
Display nameOther secondary cataract, left eye
ChapterDiseases of the eye and adnexa (H00-H59)
BlockDisorders of lens

Flags

BillableYes
Valid clinical useYes

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.

ICD-10 Code H26.492 for Other secondary cataract, left eye | HealthAssure