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v1.0.0
ICD-10 Guide
ICD-10 CodesN85.0

N85.0

Billable

Endometrial hyperplasia

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

Code Description

ICD-10 N85.0 is a billable code used to indicate a diagnosis of endometrial hyperplasia.

Key Diagnostic Point:

Endometrial hyperplasia is a condition characterized by the abnormal thickening of the endometrium, the inner lining of the uterus. This condition often arises due to an imbalance between estrogen and progesterone, typically resulting from prolonged estrogen exposure without adequate progesterone. It can present in various forms, including simple hyperplasia, complex hyperplasia, and hyperplasia with atypia, each with differing implications for cancer risk. Clinically, patients may present with abnormal uterine bleeding, which can range from heavy menstrual bleeding to postmenopausal bleeding. Diagnosis is typically confirmed through endometrial biopsy or ultrasound, which may reveal thickened endometrial lining. Management strategies may include hormonal therapy, such as progestins, or surgical intervention in cases of atypical hyperplasia or when there is a significant risk of progression to endometrial cancer. Understanding the nuances of this condition is crucial for accurate coding and appropriate patient management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in clinical presentation and symptoms
  • Differentiation between types of hyperplasia (simple vs. complex)
  • Need for biopsy results to confirm diagnosis
  • Potential overlap with other uterine disorders

Audit Risk Factors

  • Inadequate documentation of biopsy results
  • Failure to specify type of hyperplasia
  • Misclassification of hyperplasia as benign without further evaluation
  • Lack of follow-up documentation for management plans

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed documentation of patient history, symptoms, biopsy results, and treatment plans.

Common Clinical Scenarios

Patients presenting with abnormal uterine bleeding, postmenopausal bleeding, or abnormal ultrasound findings.

Billing Considerations

Ensure accurate documentation of the type of hyperplasia and any associated risk factors for endometrial cancer.

Pathology

Documentation Requirements

Comprehensive reports on biopsy specimens, including histological findings and any atypical features.

Common Clinical Scenarios

Pathologists evaluating endometrial biopsies for hyperplasia or malignancy.

Billing Considerations

Clear communication of findings to referring physicians to ensure appropriate coding and management.

Coding Guidelines

Inclusion Criteria

Use N85.0 When
  • According to ICD
  • 10 guidelines, N85
  • 0 should be used when there is a confirmed diagnosis of endometrial hyperplasia
  • It is important to document the type of hyperplasia and any associated symptoms

Exclusion Criteria

Do NOT use N85.0 When
  • Exclusion criteria include conditions that may mimic hyperplasia, such as endometrial carcinoma

Related ICD-10 Codes

Related CPT Codes

58100CPT Code

Dilation and curettage, diagnostic

Clinical Scenario

Used when a patient with suspected endometrial hyperplasia undergoes a D&C for diagnosis.

Documentation Requirements

Document indication for procedure and findings.

Specialty Considerations

Obstetricians should ensure clear documentation of the procedure and any 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 accuracy of data collection and management strategies for patients with this condition.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of endometrial hyperplasia, improving the accuracy of data collection and management strategies for patients with this condition.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of endometrial hyperplasia, improving the accuracy of data collection and management strategies for patients with this condition.

Resources

Clinical References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Coding & Billing References

  • •
    American College of Obstetricians and Gynecologists (ACOG)

Frequently Asked Questions

What is the primary cause of endometrial hyperplasia?

The primary cause of endometrial hyperplasia is an imbalance between estrogen and progesterone, often due to prolonged estrogen exposure without adequate progesterone.