Billing and Coding: Parathormone (Parathyroid Hormone)

Parathormone (parathyroid hormone) testing is covered only when medical necessity and reasonable-and-necessary criteria in LCD L34018 are met; renal dialysis facilities should submit claims with ICD-10 code N18.6. Billing must accurately reflect the service (CPT/HCPCS), CPT 83970 is limited to one unit per day, non-covered services must be billed with the appropriate modifier, and complete, legible medical record documentation (including physician orders, signatures, and support for ICD-10/CPT codes) must be maintained and available on request.

"Parathormone (parathyroid hormone) testing is covered when medical necessity and reasonable-and-necessary criteria specified in Local Coverage Determination L34018 are met."

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