What is the ICD-10 code for hypertension in pregnancy?

The ICD-10 codes for hypertension in pregnancy range from O10 to O16, covering pre-existing hypertension, gestational hypertension, preeclampsia, and eclampsia.

How do you code gestational hypertension?

Gestational hypertension is coded as O13, used when hypertension develops after 20 weeks of gestation without significant proteinuria.

ICD-10 Coding for Hypertension in Pregnancy(O10, R80.9)

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Explore comprehensive ICD-10 coding guidelines for hypertension in pregnancy, including gestational hypertension, preeclampsia, and related conditions.

Also known as:

Pregnancy-Induced HypertensionGestational HypertensionChronic Hypertension in Pregnancy

Related ICD-10 Code Ranges

Complete code families applicable to Hypertension in Pregnancy

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

Code	Description	When to Use	Key Documentation
O10	Pre-existing hypertension complicating pregnancy, childbirth and the puerperium	Use when hypertension is diagnosed before pregnancy or before 20 weeks of gestation.	Hypertension documented before 20 weeks of gestation Previous medical records indicating hypertension
O11	Pre-existing hypertension with preeclampsia	Use when preeclampsia develops in a patient with pre-existing hypertension.	Pre-existing hypertension with new onset proteinuria ≥300mg/24h
O13	Gestational hypertension without significant proteinuria	Use when hypertension develops after 20 weeks of gestation without proteinuria.	Blood pressure readings ≥140/90 mmHg after 20 weeks gestation
O14	Preeclampsia	Use when hypertension is accompanied by significant proteinuria.	Blood pressure readings ≥140/90 mmHg with proteinuria ≥300mg/24h

Primary ICD-10-CM Codes

Pre-existing hypertension complicating pregnancy, childbirth and the puerperium

O10

Differential Codes

Alternative codes to consider when ruling out similar conditions

Gestational hypertension without significant proteinuriaO13

PreeclampsiaO14

Pre-existing hypertension complicating pregnancyO10

Documentation & Coding Risks

Avoid these common issues when documenting Hypertension in Pregnancy.

Using vague terms like 'HTN' without specification

Impact

Clinical: May lead to inappropriate treatment plans., Regulatory: Non-compliance with documentation standards., Financial: Potential claim denials due to insufficient documentation.

Mitigation

Use specific terms like 'pre-existing hypertension' or 'gestational hypertension'., Ensure documentation includes timing and type of hypertension.

Misclassifying gestational hypertension as pre-existing

Impact

Reimbursement: Incorrect DRG assignment may affect reimbursement., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data affecting patient care.

Mitigation

Verify the timing of hypertension onset relative to pregnancy.

Omitting secondary codes for organ involvement

Impact

Reimbursement: Potential underpayment due to incomplete coding., Compliance: Failure to meet coding standards., Data Quality: Incomplete clinical picture in patient records.

Mitigation

Include additional codes for hypertensive heart disease if present.

Hypertension Documentation

Impact

Inadequate documentation of hypertension type and timing.

Mitigation

Implement standardized templates for documenting hypertensive disorders.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with O10.

Primary Code

O10

Pre-existing hypertension complicating pregnancy, childbirth and the puerperium

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ICD-10 codes2

Coding risks4

FAQs2

ICD-10 Coding for Hypertension in Pregnancy(O10, R80.9)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for hypertension in pregnancy?

How do you code gestational hypertension?

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