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v1.0.0
ICD-10 Guide
ICD-10 CodesN85.00

N85.00

Billable

Endometrial hyperplasia, unspecified

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N85.00 is a billable code used to indicate a diagnosis of endometrial hyperplasia, unspecified.

Key Diagnostic Point:

Endometrial hyperplasia is a condition characterized by the thickening of the endometrium, the lining of the uterus, due to an overproduction of estrogen without adequate progesterone. This condition can lead to abnormal uterine bleeding and is often a precursor to endometrial cancer. The unspecified designation indicates that the specific type of hyperplasia (e.g., simple, complex, atypical) has not been determined. It is crucial for healthcare providers to evaluate patients presenting with symptoms such as heavy menstrual bleeding, irregular periods, or postmenopausal bleeding, as these may indicate underlying hyperplasia. Diagnosis typically involves a combination of patient history, physical examination, imaging studies, and possibly endometrial biopsy. Management may include hormonal therapy, such as progestins, or surgical intervention depending on the severity and type of hyperplasia. Regular monitoring and follow-up are essential to prevent progression to malignancy.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Need for precise documentation of patient history and symptoms
  • Differentiation from other uterine disorders
  • Potential for progression to malignancy requiring careful monitoring

Audit Risk Factors

  • Inadequate documentation of symptoms leading to diagnosis
  • Failure to specify type of hyperplasia when known
  • Lack of follow-up documentation post-treatment
  • Inconsistent coding practices across providers

Specialty Focus

Medical Specialties

Gynecology

Documentation Requirements

Detailed patient history, including menstrual cycle patterns, symptoms, and any previous gynecological conditions.

Common Clinical Scenarios

Patients presenting with abnormal uterine bleeding, postmenopausal bleeding, or infertility.

Billing Considerations

Ensure that any biopsies or imaging studies are documented to support the diagnosis.

Oncology

Documentation Requirements

Comprehensive documentation of risk factors for endometrial cancer, including family history and previous gynecological cancers.

Common Clinical Scenarios

Management of patients with atypical hyperplasia or those at high risk for endometrial cancer.

Billing Considerations

Documentation should reflect the need for close monitoring and potential surgical interventions.

Coding Guidelines

Inclusion Criteria

Use N85.00 When
  • According to ICD
  • 10 guidelines, N85
  • 00 should be used when the type of endometrial hyperplasia is not specified
  • Coders should ensure that the diagnosis is supported by clinical documentation and that any related conditions are also coded appropriately

Exclusion Criteria

Do NOT use N85.00 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

58120CPT Code

Dilation and curettage (D&C)

Clinical Scenario

Used for diagnosis and treatment of endometrial hyperplasia.

Documentation Requirements

Document indication for procedure, findings, and any follow-up care.

Specialty Considerations

Gynecologists should ensure that the procedure is justified based on clinical findings.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of endometrial hyperplasia, improving the ability to track and manage this condition. The introduction of codes for different types of hyperplasia provides better data for clinical research and treatment outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of endometrial hyperplasia, improving the ability to track and manage this condition. The introduction of codes for different types of hyperplasia provides better data for clinical research and treatment outcomes.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of endometrial hyperplasia, improving the ability to track and manage this condition. The introduction of codes for different types of hyperplasia provides better data for clinical research and treatment outcomes.

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 is the difference between endometrial hyperplasia and endometrial cancer?

Endometrial hyperplasia is a condition characterized by the thickening of the endometrium due to excess estrogen, while endometrial cancer is a malignant transformation of the endometrial cells. Hyperplasia can be a precursor to cancer, particularly atypical hyperplasia, which has a higher risk of progressing to malignancy.