Hi Kim E.!

D7285 - incisional biopsy of oral tissue-hard (bone, tooth)
can be crosscoded to:
20240 - Biopsy, bone, excisional; superficial


D7921 – collection and application of autologous blood concentrate product
can be crosscoded to:
0232T - Injection(s), platelet rich plasma, any site, including image guidance, harvesting and preparation when performed


As for
D0422 - collection and preparation of genetic sample material for laboratory analysis and report

If this was collected using a swab, for example, this is typically included in the Evaluation & Management (E&M) code billed for that date of service,
99202-99205 for new patients
99211-99215 for established patients

Or, you may consider:
99000 - Handling and/or conveyance of specimen for transfer from the office to a laboratory

Hope this helps!

Edited by user Friday, February 12, 2021 9:43:49 AM(UTC)  | Reason: Not specified