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I12.9
ICD-10-CM
Hypertension with Chronic Kidney Disease

Find information on hypertension with chronic kidney disease, including clinical documentation tips, ICD-10 codes (I12.0, N18), medical coding guidelines, and healthcare resources. Learn about diagnosis, treatment, and management of hypertensive chronic kidney disease for optimal patient care. Explore resources for healthcare professionals on renal hypertension and chronic kidney disease stage classification. Understand the connection between high blood pressure and CKD, and find information on related complications and comorbidities.

Also known as

HTN with CKD
Hypertensive Nephropathy
hypertensive ckd

Diagnosis Snapshot

Key Facts
  • Definition : Persistently high blood pressure with decreased kidney function.
  • Clinical Signs : High blood pressure readings, swelling, fatigue, protein in urine.
  • Common Settings : Primary care, nephrology, cardiology clinics, hospitals.

Related ICD-10 Code Ranges

Complete code families applicable to AAPC I12.9 Coding
I12.0-I12.9

Hypertensive chronic kidney disease

Hypertension with stage 1-5 chronic kidney disease.

I13.0-I13.2

Hypertensive heart and CKD

Hypertensive heart disease complicating CKD.

N18.-

Chronic kidney disease

Chronic kidney disease stages 1-5, unspecified.

I10

Essential (primary) hypertension

High blood pressure without a known secondary cause.

Code-Specific Guidance

Decision Tree for

Follow this step-by-step guide to choose the correct ICD-10 code.

Is the hypertension documented as secondary?

  • Yes

    Due to CKD?

  • No

    Is CKD documented?

Code Comparison

Related Codes Comparison

When to use each related code

Description
Hypertension with CKD
Hypertensive CKD stage 3
Renal hypertension

Documentation Best Practices

Documentation Checklist
  • Hypertension with CKD: Document CKD stage
  • HTN with CKD: BP readings, frequency
  • HTN & CKD: Causality statement linking HTN & CKD
  • HTN & CKD: Document proteinuria/eGFR
  • HTN with CKD: Medication and treatment plan

Coding and Audit Risks

Common Risks
  • Unspecified CKD Stage

    Coding CKD without specifying the stage (e.g., I-V) leads to inaccurate DRG assignment and reimbursement.

  • Hypertensive Nephrosclerosis

    Failing to code hypertensive nephrosclerosis (I12.0) when present with hypertension and CKD impacts severity reflection.

  • Unconfirmed CKD Diagnosis

    Coding CKD based on elevated creatinine without confirmatory diagnostic testing lacks clinical validation and can trigger audits.

Mitigation Tips

Best Practices
  • Accurate ICD-10 coding: I12.*, N18.*, document CKD stage
  • Specificity in CDI: HTN type (primary/secondary), CKD etiology
  • Regular GFR, albuminuria monitoring, compliant with HEDIS measures
  • Medication reconciliation: Avoid nephrotoxic drugs, optimize BP meds
  • Patient education: Lifestyle changes, medication adherence for compliance

Clinical Decision Support

Checklist
  • Verify elevated BP readings (>=140/90 mmHg) on 2+ occasions
  • Confirm reduced eGFR (<60 mL/min/1.73 m2) for 3+ months
  • Document CKD stage (ICD-10-CM N18.*) and cause
  • Assess for proteinuria (ICD-10-CM R80.*) and other CKD markers
  • Review medications for nephrotoxicity and BP control

Reimbursement and Quality Metrics

Impact Summary
  • Hypertension with Chronic Kidney Disease: Reimbursement and Quality Metrics Impact Summary
  • Keywords: ICD-10 I12, I15, N40, CKD stage, HCC, RAF, Risk Adjustment, Value-Based Care, Medical Coding, Billing Compliance, Denials Management
  • Impact 1: Accurate CKD stage coding impacts reimbursement through HCC risk adjustment.
  • Impact 2: Proper coding affects quality reporting metrics tied to hypertension control.
  • Impact 3: Complete documentation of both conditions minimizes claim denials.
  • Impact 4: Improved coding accuracy enhances value-based care performance and shared savings.

Streamline Your Medical Coding

Let S10.AI help you select the most accurate ICD-10 codes for . Our AI-powered assistant ensures compliance and reduces coding errors.

Quick Tips

Practical Coding Tips
  • Code CKD first, then HTN
  • I12.0, I12.9, I13.10
  • N18. stages 3-5
  • Document HTN cause/effect
  • Query physician if unclear

Documentation Templates

Patient presents with hypertension and chronic kidney disease.  Blood pressure consistently elevated above target goal of less than 13080 mmHg despite adherence to prescribed antihypertensive therapy including a thiazide diuretic and an ACE inhibitor.  Laboratory results demonstrate elevated serum creatinine and decreased estimated glomerular filtration rate (eGFR), consistent with stage 3 chronic kidney disease.  Patient reports no specific complaints of edema, shortness of breath, or chest pain.  Review of systems otherwise unremarkable.  Physical examination reveals no peripheral edema, carotid bruits, or other significant findings.  Assessment:  Hypertension, uncontrolled;  Chronic Kidney Disease, stage 3.  Plan:  Optimize antihypertensive regimen by adding a calcium channel blocker.  Emphasize importance of lifestyle modifications including dietary sodium restriction, weight management, and regular exercise.  Monitor kidney function with regular serum creatinine and eGFR measurements.  Educate patient on the importance of medication adherence and potential complications of hypertension and chronic kidney disease including cardiovascular disease and end-stage renal disease.  Referral to nephrology for co-management is recommended.  Follow-up scheduled in 4 weeks to reassess blood pressure control and kidney function.  ICD-10 codes: I12.9, N39.0.  Medical billing codes will be determined based on services provided.