ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesN18.6

N18.6

Billable

End stage renal disease

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/18/2025

Code Description

ICD-10 N18.6 is a billable code used to indicate a diagnosis of end stage renal disease.

Key Diagnostic Point:

End stage renal disease (ESRD) is the final stage of chronic kidney disease (CKD), characterized by a significant decline in kidney function, typically defined as a glomerular filtration rate (GFR) of less than 15 mL/min. At this stage, the kidneys are unable to maintain the body's balance of fluids, electrolytes, and waste products, leading to severe complications. Patients often require renal replacement therapy, which includes dialysis or kidney transplantation, to sustain life. ESRD can result from various underlying conditions, including diabetes mellitus, hypertension, and glomerulonephritis. The management of ESRD involves careful monitoring of kidney function, fluid intake, and dietary restrictions, as well as addressing comorbidities. Dialysis can be performed via hemodialysis or peritoneal dialysis, and patients may also be evaluated for kidney transplantation. The transition to ESRD is often accompanied by significant changes in a patient's quality of life, necessitating comprehensive care and support.

Code Complexity Analysis

Complexity Rating: High

High Complexity

Complexity Factors

  • Differentiating between acute kidney injury and chronic kidney disease
  • Understanding the staging of CKD and its implications for treatment
  • Navigating the documentation requirements for dialysis and renal replacement therapy
  • Identifying comorbid conditions that may affect coding

Audit Risk Factors

  • Inadequate documentation of renal function tests
  • Failure to document the type of dialysis or renal replacement therapy
  • Misclassification of CKD stages
  • Lack of documentation for comorbid conditions

Specialty Focus

Medical Specialties

Nephrology

Documentation Requirements

Detailed records of kidney function tests, dialysis sessions, and patient comorbidities.

Common Clinical Scenarios

Patients transitioning from CKD to ESRD, initiation of dialysis, and evaluation for transplant.

Billing Considerations

Ensure documentation reflects the patient's functional status and treatment plan.

Transplant Surgery

Documentation Requirements

Comprehensive evaluation reports, surgical notes, and post-operative care documentation.

Common Clinical Scenarios

Assessment of patients for kidney transplant eligibility and post-transplant follow-up.

Billing Considerations

Accurate coding of transplant-related complications and follow-up care.

Coding Guidelines

Inclusion Criteria

Use N18.6 When
  • According to ICD
  • CM guidelines, N18
  • 6 should be used when the patient has reached end stage renal disease and is receiving renal replacement therapy
  • Documentation must support the diagnosis and treatment plan, including details on dialysis or transplant status

Exclusion Criteria

Do NOT use N18.6 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

90935CPT Code

Hemodialysis procedure

Clinical Scenario

Used for patients undergoing regular hemodialysis for ESRD.

Documentation Requirements

Document frequency and duration of dialysis sessions.

Specialty Considerations

Nephrology specialists must ensure accurate reporting of dialysis sessions.

50360CPT Code

Kidney transplant

Clinical Scenario

Used when a patient with ESRD receives a kidney transplant.

Documentation Requirements

Comprehensive surgical notes and post-operative care documentation.

Specialty Considerations

Transplant surgeons must document donor and recipient details.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of ESRD, improving the accuracy of claims and facilitating better patient management through detailed documentation requirements.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of ESRD, improving the accuracy of claims and facilitating better patient management through detailed documentation requirements.

Reimbursement & Billing Impact

reimbursement and compliance with payer requirements.

Resources

Clinical References

  • •
    Kidney Disease: Improving Global Outcomes (KDIGO)

Coding & Billing References

  • •
    Kidney Disease: Improving Global Outcomes (KDIGO)

Frequently Asked Questions

What is the difference between N18.5 and N18.6?

N18.5 refers to chronic kidney disease stage 5, where the patient may not yet require dialysis or transplant, while N18.6 indicates end stage renal disease where renal replacement therapy is necessary.