ICD Code N18.32

ICD code N18.32 is used to identify and classify chronic kidney disease at stage 3b. This stage indicates a moderate to severe decrease in kidney function, with a glomerular filtration rate (GFR) typically between 30 and 44 mL/min/1.73 m². It is crucial for healthcare providers to accurately document this stage to ensure appropriate treatment plans and monitoring are in place, as well as to facilitate proper billing and reimbursement processes.

1. Estimated Glomerular Filtration Rate (eGFR): Use this ICD code when the patient's eGFR is between 30 and 44 mL/min/1.73 m². This range indicates a moderate to severe decrease in kidney function, characteristic of stage 3b chronic kidney disease.

2. Persistent Proteinuria: Document the presence of protein in the urine over a period of time, which is a common symptom in patients with chronic kidney disease and can help in staging the disease.

3. Hypertension: Note the presence of high blood pressure, which is often associated with chronic kidney disease and can exacerbate the condition.

4. Fatigue and Weakness: Record symptoms of fatigue and general weakness, which are common in patients with reduced kidney function due to the buildup of waste products in the blood.

5. Swelling (Edema): Identify any swelling in the legs, ankles, or feet, which can occur due to fluid retention as kidney function declines.

6. Changes in Urination: Observe any changes in urination patterns, such as increased frequency, decreased output, or dark-colored urine, which may indicate worsening kidney function.

7. Laboratory Tests: Confirm the diagnosis with laboratory tests showing abnormalities in blood urea nitrogen (BUN) and creatinine levels, which are indicative of impaired kidney function.

8. History of Kidney Damage: Consider the patient's medical history, including any previous episodes of acute kidney injury or other conditions that may have contributed to chronic kidney damage.

By adhering to these diagnostic criteria and symptoms, healthcare providers can accurately use the ICD code for chronic kidney disease, stage 3b, ensuring proper documentation and management of the condition.

For the ICD code N18.32, which pertains to chronic kidney disease, stage 3b, the relevant CPT codes that may be applicable for treatment and management include:

1. CPT 99201-99215: These codes are used for evaluation and management services, which are essential for monitoring and managing chronic conditions like chronic kidney disease.

2. CPT 90945-90947: These codes are used for dialysis services, which may be necessary for patients with advanced stages of chronic kidney disease.

3. CPT 80047-80076: These codes cover various laboratory panels, including basic metabolic panels and comprehensive metabolic panels, which are crucial for monitoring kidney function and related metabolic parameters.

4. CPT 85025-85027: These codes are for complete blood count (CBC) tests, which are often performed to monitor overall health and detect potential complications associated with chronic kidney disease.

5. CPT 84132: This code is used for serum creatinine testing, a key indicator of kidney function.

6. CPT 82043: This code is for urine microalbumin testing, which helps in assessing kidney damage.

7. CPT 84443: This code is used for thyroid-stimulating hormone (TSH) testing, as thyroid function can be affected in patients with chronic kidney disease.

These CPT codes are commonly used in conjunction with ICD code N18.32 to ensure comprehensive care and management of the condition. It is important for healthcare providers to select the appropriate CPT codes based on the specific services rendered and the individual needs of the patient.

Discover how MD Clarity's RevFind software can enhance your revenue cycle management by accurately reading your contracts and detecting underpayments for CPT codes associated with ICD code N18.32. Schedule a demo today to see how RevFind can help ensure you're receiving the full reimbursement you deserve.