ICD Code R94.4

ICD code R94.4 is used to indicate abnormal results of kidney function studies. This code is applied when diagnostic tests reveal irregularities in kidney function, which may suggest potential kidney disorders or diseases. It is important for healthcare providers to document this code accurately to ensure proper follow-up and management of the patient's kidney health.

When using the ICD code for abnormal results of kidney function studies, consider the following diagnostic criteria and symptoms:

1. Elevated Serum Creatinine Levels: Persistent or significantly elevated levels of creatinine in the blood, indicating impaired kidney function.

2. Abnormal Blood Urea Nitrogen (BUN) Levels: Increased BUN levels, which may suggest reduced kidney filtration capacity.

3. Decreased Glomerular Filtration Rate (GFR): A lower than normal GFR, reflecting decreased kidney efficiency in filtering waste from the blood.

4. Proteinuria: Presence of abnormal amounts of protein in the urine, which can be a sign of kidney damage.

5. Hematuria: Detection of blood in the urine, which may indicate kidney or urinary tract issues.

6. Electrolyte Imbalance: Abnormal levels of electrolytes such as sodium, potassium, or calcium, often associated with kidney dysfunction.

7. Presence of Casts in Urine: Detection of cellular or granular casts in urine sediment, which can indicate kidney pathology.

8. Persistent Hypertension: High blood pressure that may be secondary to or indicative of kidney dysfunction.

9. Edema: Swelling in the extremities or face due to fluid retention, often associated with kidney issues.

10. Fatigue and Weakness: General symptoms that may accompany kidney dysfunction due to the accumulation of waste products in the body.

These criteria and symptoms should be evaluated in conjunction with a healthcare provider's clinical judgment to determine the appropriate use of the ICD code for abnormal kidney function study results.

For the ICD code R94.4, which pertains to abnormal results of kidney function studies, the relevant CPT codes that may be applicable include:

1. CPT 80047 - Basic metabolic panel (Calcium, ionized)
2. CPT 80048 - Basic metabolic panel (Calcium, total)
3. CPT 80050 - General health panel
4. CPT 80053 - Comprehensive metabolic panel
5. CPT 82040 - Albumin; serum, plasma, or whole blood
6. CPT 82565 - Creatinine; blood
7. CPT 82570 - Creatinine; other source
8. CPT 84100 - Phosphorus inorganic (phosphate); serum
9. CPT 84132 - Potassium; serum, plasma, or whole blood
10. CPT 84295 - Sodium; serum, plasma, or whole blood
11. CPT 84520 - Urea nitrogen; quantitative

These CPT codes are commonly used for laboratory tests and panels that assess kidney function and may be relevant when addressing abnormal kidney function study results indicated by ICD code R94.4. Always ensure that the selected CPT codes align with the specific services provided and the payer's guidelines.

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