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ICD-10 Coding for Hypertensive Chronic Kidney Disease(I12.9, I12.0)

Complete ICD-10-CM coding and documentation guide for Hypertensive Chronic Kidney Disease. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

HTN CKDHypertensive Nephropathyhypertensive ckd

Related ICD-10 Code Ranges

Complete code families applicable to Hypertensive Chronic Kidney Disease

I12-I13Primary Range

Hypertensive diseases with chronic kidney disease

This range includes codes for hypertension with chronic kidney disease, which are essential for accurately documenting and coding the condition.

Chronic kidney disease (CKD) stages

This range is used to specify the stage of CKD, which is necessary for complete coding of hypertensive CKD.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
I12.9Hypertensive chronic kidney disease with stage 1 through stage 4 CKD, or unspecified CKDUse when hypertension is documented with CKD stages 1-4 without heart disease.
  • eGFR between 15-89 mL/min/1.73m²
  • Documentation linking hypertension to CKD
I12.0Hypertensive chronic kidney disease with stage 5 CKD or end stage renal diseaseUse when hypertension is documented with CKD stage 5 or ESRD.
  • eGFR <15 mL/min/1.73m² or dialysis dependence
  • Documentation linking hypertension to CKD

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for hypertension with CKD

Essential facts and insights about Hypertensive Chronic Kidney Disease

Use I12.9 for hypertension with CKD stages 1-4 and I12.0 for stage 5 or ESRD. Document CKD stage.

Primary ICD-10-CM Codes for hypertension chronic kidney disease

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

Decision Criteria

clinical Criteria

  • Presence of hypertension with CKD stages 1-4

Applicable To

  • Hypertensive nephropathy

Excludes

  • Hypertensive heart and CKD (I13.-)

Clinical Validation Requirements

  • eGFR between 15-89 mL/min/1.73m²
  • Documentation linking hypertension to CKD

Code-Specific Risks

  • Incorrectly using I10 instead of I12.9 when CKD is present.

Coding Notes

  • Ensure CKD stage is documented and linked to hypertension.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Chronic kidney disease, stage 1

N18.1
Use to specify CKD stage 1 with I12.9.

Dependence on renal dialysis

Z99.2
Use to indicate dialysis dependence with I12.0.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Essential (primary) hypertension

I10
Use I10 only when CKD is not present.

Hypertensive heart and CKD with heart failure

I13.0
Use I13.0 when heart failure is present with hypertensive CKD.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Hypertensive Chronic Kidney Disease to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code I12.9.

Impact

Clinical: Inaccurate representation of disease severity., Regulatory: Non-compliance with coding standards., Financial: Potential for reduced reimbursement.

Mitigation Strategy

Always document eGFR and CKD stage., Query provider if stage is not documented.

Impact

Reimbursement: Incorrect coding can lead to lower reimbursement rates., Compliance: Non-compliance with ICD-10 coding guidelines., Data Quality: Inaccurate data on patient conditions and treatment outcomes.

Mitigation Strategy

Use I12.9 or I12.0 based on CKD stage when hypertension and CKD are documented.

Impact

Failure to sequence I12/I13 codes before CKD stage codes.

Mitigation Strategy

Educate coders on proper sequencing rules.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Hypertensive Chronic Kidney Disease, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Hypertensive Chronic Kidney Disease

Use these documentation templates to ensure complete and accurate documentation for Hypertensive Chronic Kidney Disease. These templates include all required elements for proper coding and billing.

Hypertensive CKD in Nephrology

Specialty: Nephrology

Required Elements

  • Linkage of hypertension to CKD
  • eGFR and CKD stage
  • Treatment plan including antihypertensives

Example Documentation

Assessment: Hypertensive CKD stage 3b (eGFR 38 mL/min/1.73m²). Plan: Continue ACE inhibitor.

Examples: Poor vs. Good Documentation

Poor Documentation Example
HTN and CKD stage 3
Good Documentation Example
Stage 3b CKD (eGFR 38) secondary to long-standing hypertension
Explanation
The good example explicitly links CKD to hypertension and specifies the CKD stage.

Need help with ICD-10 coding for Hypertensive Chronic Kidney Disease? Ask your questions below.

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