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Home/Diagnosis/ICD-10 Coding for Uncontrolled Hypertension

ICD-10 Coding for Uncontrolled Hypertension

I10
I16.1

Complete ICD-10-CM coding and documentation guide for icd-10 coding for uncontrolled hypertension includes clinical validation requirements, medical necessity guidelines, and coding policies.

Also Known as:
Uncontrolled High Blood Pressure
Resistant Hypertension
Hypertension Not Responding to Treatment
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Key Information: ICD-10 Coding for Uncontrolled Hypertension

Essential facts and insights about ICD-10 Coding for Uncontrolled Hypertension

Use ICD-10 code I10 for essential (primary) hypertension, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Essential (primary) hypertension

Billable Code
I10
Billable

Diagnostic Criteria

clinical:
  • • BP readings consistently ≥140/90 despite treatment
documentation:
  • • Explicit mention of 'uncontrolled hypertension' in the medical record

Applicable To

  • • Uncontrolled essential hypertension

Important Notes

  • • Ensure documentation explicitly states 'uncontrolled' or provides evidence of treatment changes.

Hypertensive emergency

Billable Code
I16.1
Billable

Diagnostic Criteria

clinical:
  • • Evidence of acute end-organ damage (e.g., retinal hemorrhages, acute renal failure)

Applicable To

  • • Malignant hypertension with end-organ damage

Important Notes

  • • Ensure documentation of specific organ damage to support the use of this code.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z79.899

Other long term (current) drug therapy

Use to indicate ongoing medication management for hypertension.

Frequently Asked Questions

What is the ICD-10 code for uncontrolled hypertension?

The ICD-10 code for uncontrolled hypertension is I10, which is used for essential hypertension. Documentation must specify 'uncontrolled' to ensure accurate coding.

How should uncontrolled hypertension be documented?

Uncontrolled hypertension should be documented with explicit mention of 'uncontrolled' and supported by BP readings ≥140/90 and treatment adjustments.

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