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ICD-10 Guide
ICD-10 CodesChapter 14: Diseases of the genitourinary systemN85

N85

Billable

Other noninflammatory disorders of uterus, except cervix

Chapter 14:Diseases of the genitourinary system

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

Code Description

ICD-10 N85 is a billable code used to indicate a diagnosis of other noninflammatory disorders of uterus, except cervix.

Key Diagnostic Point:

N85 encompasses a variety of noninflammatory disorders affecting the uterus that do not involve the cervix. These conditions can include uterine fibroids (leiomyomas), adenomyosis, and endometrial hyperplasia, among others. Uterine fibroids are benign tumors that can cause symptoms such as heavy menstrual bleeding, pelvic pain, and pressure symptoms. Adenomyosis occurs when endometrial tissue grows into the muscular wall of the uterus, leading to painful menstruation and enlarged uterus. Endometrial hyperplasia is characterized by the thickening of the endometrial lining, which can be a precursor to endometrial cancer. These disorders can significantly impact a woman's reproductive health and quality of life, necessitating careful diagnosis and management. Accurate coding is essential for appropriate treatment planning and reimbursement, as these conditions may require surgical intervention or medical management.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of conditions included under the code
  • Differentiation from inflammatory conditions
  • Need for detailed clinical documentation
  • Potential overlap with other gynecological codes

Audit Risk Factors

  • Inadequate documentation of symptoms
  • Failure to specify the type of noninflammatory disorder
  • Misclassification of inflammatory versus noninflammatory conditions
  • Lack of supporting diagnostic tests

Specialty Focus

Medical Specialties

Obstetrics and Gynecology

Documentation Requirements

Detailed patient history, physical examination findings, imaging results, and treatment plans.

Common Clinical Scenarios

Diagnosis and management of uterine fibroids, adenomyosis, and endometrial hyperplasia.

Billing Considerations

Ensure clear documentation of the specific type of disorder and its impact on the patient's health.

Reproductive Endocrinology

Documentation Requirements

Comprehensive hormonal assessments, imaging studies, and treatment response evaluations.

Common Clinical Scenarios

Evaluation of infertility related to uterine disorders.

Billing Considerations

Document any hormonal treatments or surgical interventions performed.

Coding Guidelines

Inclusion Criteria

Use N85 When
  • Follow official coding guidelines for N85, ensuring that the specific type of noninflammatory disorder is documented

Exclusion Criteria

Do NOT use N85 When
  • Exclude conditions that are inflammatory in nature or those that primarily affect the cervix

Related CPT Codes

58150CPT Code

Total abdominal hysterectomy

Clinical Scenario

Performed for symptomatic uterine fibroids coded as N85.

Documentation Requirements

Operative report detailing the indication for surgery and findings.

Specialty Considerations

Obstetricians should ensure that the diagnosis aligns with the surgical procedure.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of uterine disorders, improving the accuracy of diagnosis and treatment tracking. N85 provides a clear classification for noninflammatory conditions, enhancing data collection and analysis.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of uterine disorders, improving the accuracy of diagnosis and treatment tracking. N85 provides a clear classification for noninflammatory conditions, enhancing data collection and analysis.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of uterine disorders, improving the accuracy of diagnosis and treatment tracking. N85 provides a clear classification for noninflammatory conditions, enhancing data collection and analysis.

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 conditions are included under N85?

N85 includes various noninflammatory disorders of the uterus such as uterine fibroids, adenomyosis, and endometrial hyperplasia.

How do I differentiate between inflammatory and noninflammatory disorders?

Inflammatory disorders typically involve infection or inflammation, while noninflammatory disorders like those coded under N85 do not involve these processes.