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ICD-10 Guide
ICD-10 CodesE09.329

E09.329

Billable

Drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema

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

Code Description

ICD-10 E09.329 is a billable code used to indicate a diagnosis of drug or chemical induced diabetes mellitus with mild nonproliferative diabetic retinopathy without macular edema.

Key Diagnostic Point:

E09.329 refers to diabetes mellitus that is induced by drugs or chemicals, characterized by the presence of mild nonproliferative diabetic retinopathy without macular edema. This condition arises when certain medications or substances disrupt normal glucose metabolism, leading to elevated blood glucose levels. Nonproliferative diabetic retinopathy is an early stage of diabetic eye disease where small blood vessels in the retina become damaged, but there is no significant swelling or leakage of fluid into the macula. Patients may present with symptoms such as blurred vision or difficulty focusing, but often the condition is asymptomatic in its early stages. Management of this condition involves controlling blood glucose levels, monitoring HbA1c levels, and regular eye examinations to prevent progression of retinopathy. Insulin management may be necessary depending on the severity of diabetes and the specific drug or chemical involved. Understanding the underlying cause of the diabetes is crucial for effective treatment and prevention of further complications.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Identification of the specific drug or chemical causing diabetes
  • Differentiation between drug-induced diabetes and other types of diabetes
  • Assessment of retinopathy severity and documentation requirements
  • Management of concurrent conditions and their impact on coding

Audit Risk Factors

  • Inadequate documentation of the drug or chemical causing diabetes
  • Failure to document the severity of retinopathy
  • Incorrect coding of diabetes type
  • Lack of follow-up documentation on HbA1c levels

Specialty Focus

Medical Specialties

Endocrinology

Documentation Requirements

Detailed medication history, HbA1c levels, and treatment plans.

Common Clinical Scenarios

Patients presenting with new-onset diabetes after starting a new medication.

Billing Considerations

Ensure accurate documentation of the drug history and its timing relative to diabetes onset.

Ophthalmology

Documentation Requirements

Comprehensive eye examination findings, including retinopathy assessment.

Common Clinical Scenarios

Patients with diabetes presenting for routine eye exams or with vision complaints.

Billing Considerations

Document the absence of macular edema and the specific findings of retinopathy.

Coding Guidelines

Inclusion Criteria

Use E09.329 When
  • According to the ICD
  • CM guidelines, E09
  • 329 should be used when the diabetes is specifically induced by drugs or chemicals, and the presence of mild nonproliferative diabetic retinopathy is documented without macular edema
  • Coders must ensure that the documentation supports the diagnosis and that the retinopathy is accurately classified

Exclusion Criteria

Do NOT use E09.329 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

99213CPT Code

Established patient office visit, Level 3

Clinical Scenario

Used for follow-up visits for diabetes management.

Documentation Requirements

Document patient's diabetes management plan and any changes in medication.

Specialty Considerations

Endocrinologists should ensure comprehensive medication reviews are included.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of drug-induced diabetes, improving the accuracy of diabetes-related data and facilitating better patient management and research.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of drug-induced diabetes, improving the accuracy of diabetes-related data and facilitating better patient management and research.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of drug-induced diabetes, improving the accuracy of diabetes-related data and facilitating better patient management and research.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

What types of drugs can induce diabetes mellitus?

Common drugs that can induce diabetes include corticosteroids, certain antipsychotics, and some antihypertensive medications. It is important to document the specific drug responsible for accurate coding.