Epic Code LAB535 Discontinued: Vitamin D 25 Hydroxy Level (25-OH Vitamin D)
Test Name Alias
Vitamin D 25-Hydroxy Blood Level | VitaminD25Lvl | VitaminD25 Blood Level | Vitamin D | VitaminD | 8330 | Calcifediol
Interface Order Alias
10807
Clinical Information
Vitamin D (25-Hydroxy) is the preferred test for the assessment of Vitamin D absorption and body stores.
Reference Range
- <10 ng/mL Vitamin D: Severe Deficiency, risk for osteomalacia or rickets
- 10 – 19 ng/mL Vitamin D: Moderate to Marginal Deficiency, risk for osteoporosis or secondary hyperparathyroidism
- 20 – 50 ng/mL Vitamin D: Sufficient level
- 50 – 80 ng/mL Vitamin D: Possible hypercalciuria, risk with prolonged calcium supplementation
- >80 ng/mL Vitamin D: Toxicity possible, lowest level with reported toxicity
Population based distributions of total 25-OH Vitamin D levels in the Grand Rapids area, based on studies performed in the winter (February) and summer (August), are 8 to 32 ng/mL and 8 to 48 ng/mL respectively. Vitamin D levels are subject to a significant seasonable variation due to differences in sun exposure.
Performing Department
CHEMISTRY
Performing Department Laboratory Location
Corewell Health Reference Laboratory, Grand Rapids, MI
Methodology
Electrochemiluminescence Immunoassay (ECLIA)
CPT
82306
CDM Code
3018230601
Epic Test ID
1230101291
LOINC
25-OH Vitamin D Total: 62292-8
Mayo Access Code
SHO8330
Reviewed Date
3/23/2022