ICD Code N19

ICD code N19 is unspecified kidney failure, meaning the patient has kidney failure, but the specific type or cause has not been identified.

1. Evidence of impaired kidney function based on laboratory findings (elevated serum creatinine, reduced glomerular filtration rate)

2. Clinical signs and symptoms consistent with kidney failure (e.g., edema, fatigue, decreased urine output)

3. Absence of a more specific diagnosis for the underlying cause of kidney failure after appropriate evaluation

4. Documentation of acute or chronic kidney failure without further specification in the medical record

5. Exclusion of other specified types of kidney failure (e.g., acute, chronic, or end-stage renal disease)

Relevant CPT codes that may be used to treat ICD code N19 include:

- 90935 (Hemodialysis procedure with single evaluation by a physician or other qualified health care professional)

- 90937 (Hemodialysis procedure requiring repeated evaluation(s) with or without substantial revision of dialysis prescription)

- 90945 (Dialysis procedure other than hemodialysis, per day)

- 90947 (Dialysis procedure other than hemodialysis, requiring repeated evaluation(s), per day)

- 90960–90962 (End-stage renal disease (ESRD) related services monthly, for patients 20 years or older)

- 36513 (Therapeutic apheresis; plasma exchange)

- 36514 (Therapeutic apheresis; leukocytapheresis)

- 36515 (Therapeutic apheresis; photopheresis)

- 99221–99223 (Initial hospital care, per day, for the evaluation and management of a patient)

- 99231–99233 (Subsequent hospital care, per day, for the evaluation and management of a patient)

See how MD Clarity’s RevFind software can read your payer contracts and automatically detect underpayments for CPT codes related to ICD code N19. Schedule a demo today to ensure you’re capturing the full reimbursement your organization deserves.