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ICD-10 Guide
ICD-10 CodesE10.33

E10.33

Billable

Type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 E10.33 is a billable code used to indicate a diagnosis of type 1 diabetes mellitus with moderate nonproliferative diabetic retinopathy.

Key Diagnostic Point:

E10.33 refers to Type 1 diabetes mellitus, a chronic condition characterized by the body's inability to produce insulin due to autoimmune destruction of pancreatic beta cells. This specific code indicates the presence of moderate nonproliferative diabetic retinopathy (NPDR), a common complication of diabetes that affects the retina. NPDR is characterized by the presence of microaneurysms, retinal hemorrhages, and exudates, which can lead to vision impairment if left untreated. The classification of diabetic retinopathy into mild, moderate, and severe NPDR is based on the extent of retinal damage and the presence of specific retinal findings. Patients with E10.33 often require regular eye examinations and may need interventions such as laser therapy or intravitreal injections to manage their condition. Effective management of Type 1 diabetes, including maintaining optimal HbA1c levels (generally below 7% for most adults), is crucial in preventing or delaying the onset of diabetic retinopathy and other complications. Insulin therapy is the cornerstone of treatment for Type 1 diabetes, and patients may use multiple daily injections or insulin pumps to achieve glycemic control.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of diabetes classification and complications
  • Need for accurate documentation of retinopathy severity
  • Potential for overlapping codes with other diabetic complications
  • Management of insulin therapy and its documentation

Audit Risk Factors

  • Inadequate documentation of retinopathy severity
  • Failure to document HbA1c levels
  • Lack of evidence for regular eye examinations
  • Misclassification of diabetic retinopathy severity

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed records of insulin therapy, HbA1c levels, and diabetes management plans.

Common Clinical Scenarios

Patients presenting with uncontrolled diabetes, requiring insulin adjustments.

Billing Considerations

Ensure documentation reflects the patient's diabetes management and any complications.

Ophthalmology

Documentation Requirements

Comprehensive eye examination reports, including findings related to diabetic retinopathy.

Common Clinical Scenarios

Patients undergoing routine eye exams for diabetic retinopathy screening.

Billing Considerations

Document the severity of retinopathy and any treatments provided.

Coding Guidelines

Inclusion Criteria

Use E10.33 When
  • According to ICD
  • CM guidelines, E10
  • 33 should be used when a patient has Type 1 diabetes with moderate NPDR
  • Coders must ensure that the documentation supports the diagnosis and that the severity of retinopathy is clearly indicated

Exclusion Criteria

Do NOT use E10.33 When
  • Exclusion criteria include cases where retinopathy is not documented or where the diabetes type is misclassified

Related ICD-10 Codes

Related CPT Codes

92014CPT Code

Ophthalmological examination, established patient

Clinical Scenario

Used during routine eye exams for diabetic retinopathy screening.

Documentation Requirements

Document findings of the eye exam and any treatments provided.

Specialty Considerations

Ophthalmologists should ensure that the severity of retinopathy is documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of diabetes and its complications, improving the accuracy of data collection and reimbursement. E10.33 provides a clear indication of the severity of diabetic retinopathy, which is crucial for treatment planning and management.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of diabetes and its complications, improving the accuracy of data collection and reimbursement. E10.33 provides a clear indication of the severity of diabetic retinopathy, which is crucial for treatment planning and management.

Reimbursement & Billing Impact

reimbursement. E10.33 provides a clear indication of the severity of diabetic retinopathy, which is crucial for treatment planning and management.

Resources

Clinical References

  • •
    American Diabetes Association
  • •
    American Academy of Ophthalmology

Coding & Billing References

  • •
    American Diabetes Association
  • •
    American Academy of Ophthalmology

Frequently Asked Questions

What is the significance of coding E10.33?

Coding E10.33 is significant as it indicates the presence of moderate nonproliferative diabetic retinopathy in a patient with Type 1 diabetes, which is crucial for treatment planning and monitoring of potential vision loss.

How often should patients with E10.33 have eye exams?

Patients with E10.33 should have comprehensive eye exams at least annually, or more frequently if recommended by their ophthalmologist, to monitor the progression of diabetic retinopathy.