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N85.00
ICD-10-CM
Thickened Endometrium

Find comprehensive information on thickened endometrium, including clinical documentation tips, medical coding guidelines (ICD-10), differential diagnosis considerations, ultrasound findings, and endometrial hyperplasia management. Learn about the causes of thickened uterine lining, diagnostic procedures, and treatment options. Explore resources for healthcare professionals, including pathology reports, clinical terminology, and best practices for accurate and efficient documentation of thickened endometrium cases.

Also known as

Endometrial Thickening
Endometrial Hyperplasia

Diagnosis Snapshot

Key Facts
  • Definition : Inner uterine lining thicker than normal, often seen after menopause.
  • Clinical Signs : Abnormal uterine bleeding, pelvic pain, sometimes asymptomatic.
  • Common Settings : Outpatient clinic, gynecology office, ultrasound imaging centers.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC N85.00 Coding
N85.0-N85.9

Endometrial hyperplasia

Abnormal thickening of the uterine lining (endometrium).

N76.0-N76.9

Other inflammatory diseases of uterus

Inflammation of the uterus not classified elsewhere, sometimes associated with thickening.

E28.0-E28.9

Ovarian dysfunction

Hormonal imbalances affecting ovaries can lead to endometrial thickening.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is endometrial thickening due to hyperplasia?

  • Yes

    Is it atypical hyperplasia?

  • No

    Is it due to hormonal effects?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Thickened Endometrium
Endometrial Hyperplasia
Endometrial Polyp

Documentation Best Practices

Documentation Checklist
  • Thickened endometrium measurement (mm)
  • Location and characteristics description
  • Symptoms (e.g., bleeding, pain)
  • Menopausal status documentation
  • Relevant medical history (e.g., hormone therapy)

Coding and Audit Risks

Common Risks
  • Unspecified Etiology

    Coding thickened endometrium without specifying the cause (e.g., hormonal, polyp) leads to inaccurate reporting and potential denials. CDI crucial for clarification.

  • Atypia Documentation

    Missing or unclear documentation of atypia (if present) impacts coding, staging, and treatment. CDI should query for specificity in pathology reports.

  • Measurement Discrepancy

    Inconsistent endometrial thickness measurements across imaging reports can lead to coding errors. CDI should reconcile discrepancies for accurate coding.

Mitigation Tips

Best Practices
  • Code endometrial thickening accurately using ICD-10 N73.89 or SNOMED CT 128841006 for optimal reimbursement.
  • Document endometrial thickness measurements, echogenicity, and any associated symptoms in detail for improved CDI.
  • Ensure medical necessity for procedures like endometrial biopsy by linking to diagnostic findings and symptoms.
  • Follow established guidelines for endometrial thickening evaluation and management to maintain healthcare compliance.
  • Communicate clearly with patients about findings, risks, and next steps in the diagnostic process.

Clinical Decision Support

Checklist
  • Verify endometrial thickness measurement: >4mm postmenopausal?
  • Exclude pregnancy: hCG test documented?
  • Consider other causes: Fibroids, polyps ruled out?
  • Assess bleeding pattern: Type, duration documented?
  • Sampling performed and documented: Biopsy or D C?

Reimbursement and Quality Metrics

Impact Summary
  • Thickened Endometrium reimbursement hinges on accurate ICD-10 diagnosis coding (N85.0-N85.9) impacting payer contract negotiations.
  • Quality metrics for endometrial biopsy or ultrasound use tied to appropriate diagnosis coding improves hospital performance reporting.
  • Accurate coding and documentation for thickened endometrium affects case mix index (CMI) and subsequent hospital reimbursement.
  • Timely and specific coding, eg. abnormal uterine bleeding (AUB) with thickened endometrium, improves claim denial management and revenue cycle.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes. Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code underlying cause, not just thickening
  • Endometrial hyperplasia? Specify type
  • Rule out malignancy with documentation
  • Consider N85.0 for simple hyperplasia
  • Abnormal bleeding? Code it too

Documentation Templates

Patient presents with abnormal uterine bleeding, including menorrhagia, metrorrhagia, or postmenopausal bleeding.  Pelvic examination may reveal a normal-sized or enlarged uterus.  Transvaginal ultrasound demonstrates endometrial thickening, measuring greater than the normal range for the patient's menopausal status.  Differential diagnosis includes endometrial polyps, endometrial hyperplasia, and endometrial cancer.  Endometrial biopsy or dilation and curettage is recommended to evaluate for endometrial pathology and determine the cause of the thickened endometrium.  Clinical findings and ultrasound measurements are documented.  Assessment includes thickened endometrium, abnormal uterine bleeding, and premenopausal or postmenopausal status as appropriate.  Plan includes histopathological analysis of endometrial tissue, follow-up based on biopsy results, and consideration of hormonal therapy or further surgical intervention depending on the final diagnosis.  Patient education provided regarding the importance of follow-up care and potential treatment options for endometrial hyperplasia or endometrial cancer if diagnosed.  ICD-10 code N85.09, other specified noninflammatory disorders of uterus, may be considered depending on the specific clinical scenario, with further specification based on biopsy results.  Medical coding and billing will be finalized based on the definitive diagnosis.
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