What is the ICD-10 code for elevated blood pressure in pregnancy?

The ICD-10 code for gestational hypertension without significant proteinuria is O13.9. It is used when hypertension occurs after 20 weeks of gestation without proteinuria.

How do you code pre-existing hypertension in pregnancy?

Use ICD-10 code O10.0 for pre-existing essential hypertension complicating pregnancy. Document the hypertension history and any complications.

ICD-10 Coding for Elevated Blood Pressure in Pregnancy(O13.9, O10.0, O14.0)

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Learn about ICD-10 coding for elevated blood pressure in pregnancy, including gestational hypertension and pre-existing hypertension. Find documentation tips and coding guidelines.

Also known as:

Gestational HypertensionPregnancy-Induced HypertensionTransient Hypertension of Pregnancy

Related ICD-10 Code Ranges

Complete code families applicable to Elevated Blood Pressure 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
O13.9	Gestational hypertension without significant proteinuria, unspecified trimester	Use when a pregnant patient develops hypertension after 20 weeks without proteinuria.	BP ≥140/90 mmHg after 20 weeks of gestation No significant proteinuria (urine protein <300mg/24hr)
O10.0	Pre-existing essential hypertension complicating pregnancy, childbirth and the puerperium	Use for patients with a history of hypertension prior to pregnancy.	Hypertension diagnosed before pregnancy or before 20 weeks of gestation

Primary ICD-10-CM Codes

Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester

O13.9Billable

Differential Codes

Alternative codes to consider when ruling out similar conditions

Pre-eclampsiaO14.0

Gestational hypertensionO13.9

Documentation & Coding Risks

Avoid these common issues when documenting Elevated Blood Pressure in Pregnancy.

Failing to specify gestational age

Impact

Clinical: Inaccurate clinical assessment, Regulatory: Non-compliance with coding standards, Financial: Potential claim denials

Mitigation

Always include Z3A code for gestational age, Verify documentation completeness

Using O13.9 when proteinuria is present

Impact

Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data representation.

Mitigation

Use O14.- for pre-eclampsia if proteinuria ≥300mg/24hr is present.

Incorrect Code Usage

Impact

Using O13.9 without proper documentation of BP and proteinuria.

Mitigation

Implement regular training on documentation standards.

Frequently Asked Questions

Documentation requirements, coding pitfalls and FAQs for conditions coded with O13.9.

Primary Code

O13.9

Gestational [pregnancy-induced] hypertension without significant proteinuria, unspecified trimester

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ICD-10 codes3

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ICD-10 Coding for Elevated Blood Pressure in Pregnancy(O13.9, O10.0, O14.0)

Documentation & Coding Risks

Frequently Asked Questions

What is the ICD-10 code for elevated blood pressure in pregnancy?

How do you code pre-existing hypertension in pregnancy?

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