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v1.0.0
ICD-10 Guide
ICD-10 CodesChapter 14: Diseases of the genitourinary systemN19

N19

Billable

Unspecified kidney failure

Chapter 14:Diseases of the genitourinary system

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

Code Description

ICD-10 N19 is a billable code used to indicate a diagnosis of unspecified kidney failure.

Key Diagnostic Point:

Unspecified kidney failure, classified under ICD-10 code N19, refers to a condition where the kidneys are unable to maintain normal function, leading to an accumulation of waste products in the body. This condition can arise from various underlying causes, including acute kidney injury (AKI) or chronic kidney disease (CKD). AKI is characterized by a rapid decline in kidney function, often reversible, and can be triggered by factors such as dehydration, medications, or infections. In contrast, CKD is a progressive loss of kidney function over time, often due to diabetes or hypertension. Patients with unspecified kidney failure may require renal replacement therapy, including dialysis, to manage their condition. Dialysis can be either hemodialysis or peritoneal dialysis, depending on the patient's needs and clinical scenario. Additionally, patients with advanced CKD may be evaluated for kidney transplantation, which involves careful consideration of donor availability and recipient eligibility. Accurate coding of unspecified kidney failure is crucial for appropriate management and reimbursement, as it encompasses a wide range of clinical presentations and treatment modalities.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of underlying causes leading to kidney failure
  • Differentiation between acute and chronic conditions
  • Need for detailed documentation of renal function tests
  • Potential for co-morbid conditions affecting kidney health

Audit Risk Factors

  • Inadequate documentation of kidney function tests
  • Failure to specify acute vs. chronic kidney failure
  • Lack of clarity on the cause of kidney failure
  • Inconsistent coding of related conditions

Specialty Focus

Medical Specialties

Nephrology

Documentation Requirements

Detailed lab results, history of kidney function, and treatment plans.

Common Clinical Scenarios

Management of patients with AKI or CKD, initiation of dialysis, and pre-transplant evaluations.

Billing Considerations

Ensure that all relevant lab values and patient history are documented to support the diagnosis.

Internal Medicine

Documentation Requirements

Comprehensive patient history, medication lists, and assessment of comorbidities.

Common Clinical Scenarios

Evaluation of patients with hypertension or diabetes leading to kidney issues.

Billing Considerations

Documentation should reflect the progression of kidney disease and any referrals to nephrology.

Coding Guidelines

Inclusion Criteria

Use N19 When
  • According to official coding guidelines, N19 should be used when the specific type of kidney failure is not documented
  • Coders should ensure that the documentation does not support a more specific diagnosis
  • It is essential to review lab results and clinical notes to determine the appropriate code

Exclusion Criteria

Do NOT use N19 When
No specific exclusions found.

Related CPT Codes

90935CPT Code

Hemodialysis

Clinical Scenario

Used for patients with unspecified kidney failure requiring dialysis.

Documentation Requirements

Document the need for dialysis and patient consent.

Specialty Considerations

Nephrology specialists should ensure that all dialysis sessions are documented.

50360CPT Code

Kidney transplant

Clinical Scenario

Used when a patient with unspecified kidney failure is evaluated for transplant.

Documentation Requirements

Document the patient's eligibility and donor information.

Specialty Considerations

Transplant surgeons must provide detailed documentation of the transplant process.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of kidney conditions, but the use of N19 remains important for cases where the specific type of kidney failure is not documented. Coders must be diligent in reviewing documentation to ensure appropriate coding.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of kidney conditions, but the use of N19 remains important for cases where the specific type of kidney failure is not documented. Coders must be diligent in reviewing documentation to ensure appropriate coding.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of kidney conditions, but the use of N19 remains important for cases where the specific type of kidney failure is not documented. Coders must be diligent in reviewing documentation to ensure appropriate coding.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should I use N19 instead of more specific codes?

Use N19 when the documentation does not specify the type of kidney failure, and no other specific codes apply.

What documentation is needed to support the use of N19?

Documentation should include lab results indicating kidney function, patient history, and any treatments provided.