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Home/Diagnosis/ICD-10 Coding for Uncontrollable Hypertension

ICD-10 Coding for Uncontrollable Hypertension

I10
I11.0
I12.9

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

Also Known as:
Resistant Hypertension
Refractory Hypertension
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Key Information: ICD-10 Coding for Uncontrollable Hypertension

Essential facts and insights about ICD-10 Coding for Uncontrollable 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

  • • Diagnosis of hypertension without specified organ damage

Applicable To

  • • High blood pressure

Important Notes

  • • Ensure no organ damage is documented when using I10.

Hypertensive heart disease with heart failure

Billable Code
I11.0
Billable

Diagnostic Criteria

  • • Echocardiogram showing left ventricular hypertrophy
  • • Documented heart failure symptoms

Applicable To

  • • Hypertensive heart disease with heart failure

Important Notes

  • • Document both hypertension and heart failure clearly.

Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease

Billable Code
I12.9
Billable

Diagnostic Criteria

  • • eGFR <60 mL/min/1.73 m²
  • • Urine albumin/creatinine ratio ≥30 mg/g

Applicable To

  • • Hypertensive CKD without renal failure

Important Notes

  • • Link hypertension and CKD in documentation.

Resistant hypertension

Billable Code
I1A.0
Billable

Diagnostic Criteria

  • • BP ≥140/90 mmHg on 3+ medications including a diuretic
  • • Documentation of medication adherence

Applicable To

  • • Hypertension not controlled with 3+ medications

Important Notes

  • • Document all medications and adherence verification.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z79.4

Long-term (current) use of insulin

Use to indicate long-term use of antihypertensive medications.

I50.xx

Heart failure types

Use to specify the type of heart failure.

N18.x

CKD stages

Use to specify the stage of CKD.

Frequently Asked Questions

What is the ICD-10 code for uncontrollable hypertension?

The ICD-10 code for uncontrollable hypertension is I1A.0, used for resistant hypertension not controlled with 3 or more medications.

How do you code hypertension with CKD?

For hypertension with CKD, use I12.9 for stages 1-4 CKD, and add N18.x to specify the CKD stage.

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