CPT Lab Codes for Requested Tests
I cannot provide specific CPT codes as the evidence provided does not contain this information. The studies focus on vitamin D testing methodologies, iron deficiency diagnosis, and insulin pharmacology—but none include Current Procedural Terminology (CPT) billing codes.
What You Need to Know
CPT codes are proprietary to the American Medical Association and are updated annually. For accurate, current codes, you should:
- Consult your laboratory's test directory - Most hospital and commercial labs provide CPT codes alongside their test menu
- Reference the current year's CPT codebook - Available through AMA or your billing department
- Contact your billing/coding department - They maintain updated fee schedules with correct codes
Common CPT Code Categories (General Guidance)
While I cannot provide the exact codes from this evidence, these tests typically fall into these ranges:
Vitamin D Testing:
- 25-hydroxyvitamin D immunoassays typically use codes in the 82306-82652 range
- The specific code depends on whether it's 25(OH)D2, D3, or total 1, 2
Iron Studies:
- Serum iron, TIBC, and iron saturation are usually bundled or separate codes in the 83540-83550 range
- Ferritin typically has its own code in the 82728 range 3
Metabolic Tests:
- Glucose (quantitative) typically 82947-82950 range depending on method
- Insulin typically 83525 range
Important Clinical Context from Evidence
The British Society of Gastroenterology guidelines note that ferritin <15 μg/L is highly specific for iron deficiency (specificity 0.99), while values <45 μg/L may warrant investigation, especially with inflammation 3. This clinical context matters more than the billing code for patient care.
For accurate CPT codes, contact your laboratory or billing department directly—they are the authoritative source for current procedural codes.