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ICD-10 Coding for Morning Sickness(O21.9, E86.0, E87.6)

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Learn about ICD-10 coding for morning sickness, including code O21.9 for vomiting of pregnancy. Understand documentation requirements and coding pitfalls.

Also known as:
Nausea and Vomiting of PregnancyPregnancy Sickness
Related ICD-10 Code Ranges

Complete code families applicable to Morning Sickness

O00-O9APrimary Range

Pregnancy, childbirth and the puerperium

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Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescription
O21.9Vomiting of pregnancy, unspecified
O21.0Mild hyperemesis gravidarum
Primary ICD-10-CM Codes
Vomiting of pregnancy, unspecified
O21.9Billable
Differential Codes

Alternative codes to consider when ruling out similar conditions

Mild hyperemesis gravidarumO21.0

Use when there is weight loss <5% body weight without electrolyte imbalance.

Hyperemesis gravidarum with metabolic disturbanceO21.1

Use when there is significant metabolic disturbance such as ketonuria or electrolyte imbalance.

Documentation & Coding Risks

Avoid these common issues when documenting Morning Sickness.

Omitting gestational age

Impact

Clinical: Inaccurate assessment of pregnancy-related conditions., Regulatory: Non-compliance with coding guidelines., Financial: Potential claim denials due to incomplete documentation.

Mitigation

Always document gestational age in patient records., Use specific Z3A.XX codes.

Using R11.0 for nausea in pregnancy

Impact

Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with ICD-10 guidelines., Data Quality: Inaccurate data on pregnancy-related conditions.

Mitigation

Always verify pregnancy status and use O21.9 for pregnancy-related nausea.

Incorrect coding of pregnancy-related nausea

Impact

Using non-pregnancy codes for nausea in pregnant patients.

Mitigation

Verify pregnancy status and use appropriate O21 codes.

Frequently Asked Questions

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with O21.9.