ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
DiagnosesThickened Endometrium

Thickened Endometrium

ICD-10 Coding for Thickened Endometrium(R93.89, N85.00)

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

Diagnosis Overview

What is Thickened Endometrium?
Essential facts and insights about Thickened Endometrium

Key Clinical Considerations:

  • Abnormal uterine bleeding
  • Pelvic pain or pressure
  • Menstrual irregularities

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history of menstrual cycles
  • Results of transvaginal ultrasound showing endometrial thickness
  • Pathology report if biopsy is performed

Coding Guidelines

Usage Guidelines & Examples

  • Ensure correct use of N85.0 for thickened endometrium versus other endometrial conditions.
  • Common errors include misclassifying endometrial hyperplasia or malignancy.

Code Exclusions

Important Exclusions

  • Endometrial hyperplasia (N85.1)
  • Endometrial carcinoma (C54.1)

Related ICD-10 Codes

Primary Codes
N85.0
Thickened endometrium
Ancillary Codes
Z79.810
Z15.04
Differential Codes
N85.00
R93.89

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Gynecology

Specialty Applications

  • Women of reproductive age experiencing abnormal bleeding
  • Gynecological clinics and outpatient settings

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

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 are the documentation requirements?

Document patient symptoms, diagnostic imaging results, and any treatment plans.

What are the billing considerations?

Ensure accurate coding based on the diagnosis and any associated procedures.