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Home/Diagnosis/ICD-10 Coding for Chronic Kidney Injury

ICD-10 Coding for Chronic Kidney Injury

N18.1
N18.4
N18.6

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

Also Known as:
Chronic Kidney Disease
CKD
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Key Information: ICD-10 Coding for Chronic Kidney Injury

Essential facts and insights about ICD-10 Coding for Chronic Kidney Injury

Use ICD-10 code N18.1 for chronic kidney disease, stage 1, ensuring proper documentation in clinical notes.

Primary ICD-10-CM Codes

Chronic kidney disease, stage 1

Billable Code
N18.1
Billable

Diagnostic Criteria

clinical_criteria:
  • • eGFR ≥90 with proteinuria

Applicable To

  • • GFR ≥90 with evidence of kidney damage

Important Notes

  • • Ensure documentation of kidney damage markers.

Chronic kidney disease, stage 4

Billable Code
N18.4
Billable

Diagnostic Criteria

clinical_criteria:
  • • eGFR 15-29

Applicable To

  • • Severe reduction in kidney function

Important Notes

  • • Ensure eGFR is documented to support stage.

End-stage renal disease

Billable Code
N18.6
Billable

Diagnostic Criteria

clinical_criteria:
  • • eGFR <15 or dialysis dependence

Applicable To

  • • Chronic kidney disease requiring dialysis

Important Notes

  • • Document dialysis status clearly.
Ancillary Codes

Additional codes that may be used with this diagnosis

Z99.2

Dependence on renal dialysis

Use when the patient is on chronic dialysis.

Frequently Asked Questions

How do you code chronic kidney disease with hypertension?

Code I12.9 for hypertensive CKD followed by the specific CKD stage code, such as N18.4 for stage 4.

What is the ICD-10 code for end-stage renal disease?

The ICD-10 code for end-stage renal disease is N18.6, used when eGFR is <15 or the patient is on dialysis.

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