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v1.0.0
ICD-10 Guide
DiagnosesLeft Eye Blindness

Left Eye Blindness

ICD-10 Coding for Left Eye Blindness(H54.42A3, H54.42A4)

PRIMARY SPECIALTYOphthalmology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Left Eye Blindness?
Essential facts and insights about Left Eye Blindness

Key Clinical Considerations:

  • Loss of vision in the left eye, inability to perceive light or visual stimuli
  • Visual acuity tests showing no light perception in the left eye
  • Fundoscopic examination revealing optic nerve damage or retinal pathology

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including onset and duration of blindness
  • Results of visual acuity tests and any imaging studies
  • Detailed description of physical exam findings related to the left eye

Coding Guidelines

Usage Guidelines & Examples

  • Use H54.42 for left eye blindness; avoid using codes for other eye conditions unless applicable.
  • Common errors include misreporting visual acuity or failing to document the cause of blindness.

Code Exclusions

Important Exclusions

  • Conditions such as amblyopia or refractive errors that do not result in total blindness.
  • Alternative codes for right eye blindness or bilateral blindness.

Related ICD-10 Codes

Primary Codes
H54.42
Blindness, left eye, both eyes not specified
Ancillary Codes
E11.31
H40.11X3
Differential Codes
H54.6
H54.7

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Ophthalmology

Specialty Applications

  • Patients with ocular trauma, retinal diseases, or neurological conditions affecting vision.
  • Ophthalmology clinics, emergency departments, and primary care settings.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Document visual acuity results, patient history, and exam findings.

Billing considerations?

Ensure accurate coding to reflect the severity and cause of blindness.