ICD-10 Coding for Missed Period(E28.2P, N91.0, N91.0B)
Learn about ICD-10 coding for missed periods, including primary and secondary amenorrhea. Understand documentation requirements and coding pitfalls.
Complete code families applicable to Missed Period
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 aged 15 or older has not experienced menarche despite normal pubertal development. |
|
| N91.1 | Secondary amenorrhea | Use for patients with a history of menstruation who have not menstruated for three months or more. |
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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 Period
Alternative codes to consider when ruling out similar conditions
Documentation & Coding Risks
Avoid these common issues when documenting Missed Period.
Failing to document LMP date
Impact
Clinical: Impacts diagnosis accuracy, Regulatory: Non-compliance with coding standards, Financial: Potential claim denials
Mitigation
Always record LMP in patient history, Use templates to ensure completeness
Using unspecified codes when more specific ones apply
Impact
Reimbursement: May affect DRG assignment and payment rates., Compliance: Increases risk of audit and non-compliance., Data Quality: Leads to inaccurate clinical data.
Mitigation
Ensure documentation specifies primary or secondary amenorrhea.
Unspecified Code Usage
Impact
Using N91.2 without specifying primary or secondary amenorrhea.
Mitigation
Educate providers on documentation requirements.