ICD-10 Coding for Missed Menses(E28.3P, E28.3U, N91.0)
Explore ICD-10 coding for missed menses, including primary and secondary amenorrhea. Learn about documentation requirements and coding pitfalls.
Complete code families applicable to Missed Menses
Compare key differences between these codes to ensure accurate selection
| Code | Description | When to Use | Key Documentation |
|---|---|---|---|
| N91.0 | Primary amenorrhea | Use when a patient has not started menstruating by age 15 with secondary sexual characteristics or by age 16 without them. |
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| N91.1 | Secondary amenorrhea | Use for patients who have missed three or more consecutive menstrual cycles after previously having regular periods. |
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Clinical Decision Support
Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.
Key Information
Essential facts and insights aboutMissed Menses
Alternative codes to consider when ruling out similar conditions
Documentation & Coding Risks
Avoid these common issues when documenting Missed Menses.
Failure to document exclusion of pregnancy
Impact
Clinical: May lead to inappropriate treatment decisions., Regulatory: Non-compliance with coding guidelines., Financial: Potential claim denials due to incomplete documentation.
Mitigation
Always perform and document a pregnancy test for amenorrhea cases.
Coding oligomenorrhea as amenorrhea
Impact
Reimbursement: Incorrect coding can lead to denied claims., Compliance: Misclassification affects data accuracy., Data Quality: Impacts clinical decision-making and patient records.
Mitigation
Use N92.0 for oligomenorrhea unless there are 3 or more missed cycles.
Documentation of menstrual history
Impact
Incomplete menstrual history can lead to audit findings.
Mitigation
Ensure comprehensive documentation of menstrual history and exclusion criteria.