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ICD-10 Guide
DiagnosesAortic Retinal Ganglion

Aortic Retinal Ganglion

ICD-10 Coding for Aortic Ectasia and Retinal Ganglion Cell Pathology(I77.810, H47.391)

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

Diagnosis Overview

What is Aortic Retinal Ganglion?
Essential facts and insights about Aortic Ectasia and Retinal Ganglion Cell Pathology

Key Clinical Considerations:

  • Patients may present with visual disturbances, including blurred vision or loss of vision, which are indicative of retinal ganglion cell pathology.
  • Diagnostic tests such as optical coherence tomography (OCT) may reveal thinning of the retinal nerve fiber layer, suggesting retinal ganglion cell loss.
  • Physical examination may show signs of aortic ectasia, such as a palpable mass or abnormal heart sounds during auscultation.
  • Imaging studies, including echocardiography or MRI, may demonstrate aortic dilation or ectasia, which can be associated with retinal changes.
  • Severity criteria may include the degree of visual impairment and the extent of aortic dilation, which can be classified into mild, moderate, or severe stages.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Medical records must include a clear diagnosis of aortic ectasia and any associated retinal ganglion cell pathology.
  • Specific terminology such as 'aortic ectasia' and 'retinal ganglion cell loss' must be documented to support coding.
  • Examples include documenting the patient's symptoms, diagnostic test results, and treatment plans clearly and concisely.
  • Medical necessity must be established through documentation of symptoms and the rationale for diagnostic tests or treatments.
  • Quality measures may require documentation of visual acuity assessments and follow-up care plans.

Coding Guidelines

Usage Guidelines & Examples

  • Use the primary diagnosis code I77.810 for patients with aortic ectasia when it is the main reason for the visit or treatment.
  • Do not use this code for patients with aortic aneurysm or other vascular conditions that do not involve ectasia.
  • Compare with related codes such as I77.9 (Unspecified disorder of arteries and arterioles) for broader vascular issues.
  • Common coding errors include misclassifying aortic ectasia as an aneurysm; ensure accurate diagnosis is reflected in coding.
  • In complex cases, consider the patient's entire clinical picture, including comorbidities, to select the most appropriate code.

Code Exclusions

Important Exclusions

  • Conditions explicitly excluded include aortic dissection (I71.0) and retinal detachment (H33.0).
  • Alternative codes for excluded conditions should be used to accurately reflect the patient's diagnosis.
  • Exclusions are based on the distinct pathophysiology of these conditions compared to aortic ectasia and retinal ganglion pathology.
  • Common mistakes include using the aortic ectasia code for patients with aortic dissection; ensure accurate diagnosis.
  • Related but distinct conditions include aortic aneurysm and other retinal diseases that require different management.

Related ICD-10 Codes

Primary Codes
I77.810
Aortic ectasia
H47.391
Retinal ganglion cell pathology
Ancillary Codes
Q23.83
R94.110
Differential Codes
I71.2
H40.11

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Cardiology

Specialty Applications

  • This diagnosis applies to patients with aortic ectasia and associated visual symptoms.
  • Patient populations may include older adults or those with risk factors such as hypertension or connective tissue disorders.
  • Clinical settings include outpatient cardiology clinics, emergency departments, and inpatient care for severe cases.
  • Specialty-specific applications are relevant in cardiology and ophthalmology for comprehensive patient management.
  • Treatment contexts include monitoring for progression of aortic ectasia and managing visual symptoms related to retinal ganglion cell loss.

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

Template 1

Template: 'Patient diagnosed with aortic ectasia based on echocardiographic findings of dilation.'

Template 2

Template: 'Clinical presentation consistent with retinal ganglion cell pathology including blurred vision and visual field loss.'

Template 3

Template: 'Diagnostic criteria for aortic ectasia met as evidenced by imaging studies showing dilation.'

Template 4

Template: 'Treatment plan initiated for retinal ganglion cell loss with referral to ophthalmology for further evaluation.'

Template 5

Template: 'Follow-up care for aortic ectasia including monitoring of blood pressure and imaging studies.'

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

What documentation is required for this diagnosis?

Documentation must include clinical findings, diagnostic test results, and treatment plans.

How does this differ from similar diagnoses?

Key differences include the specific nature of aortic ectasia versus other aortic conditions.

What are common billing considerations?

Ensure that the diagnosis is clearly linked to the services provided to optimize reimbursement.

What procedures are typically associated?

Related CPT codes may include echocardiography and OCT for diagnostic evaluation.

Are there any quality reporting implications?

Quality measures may include tracking visual acuity and follow-up care for patients with these diagnoses.