Question 1

What is HCPCS code S3645?

Accepted Answer

HCPCS code S3645 is "Hiv-1 antibody testing of or". Hiv-1 antibody testing of oral mucosal transudate

Question 2

What category is S3645 in?

Accepted Answer

S3645 belongs to HCPCS Category S (Temporary National Codes (Non-Medicare)).

Question 3

When should I use HCPCS code S3645?

Accepted Answer

Use S3645 when billing for hiv-1 antibody testing of or. HCPCS Level II codes like this are used for items and services not covered by CPT codes, including medical supplies, equipment, drugs administered in clinical settings, and certain healthcare services.

Question 4

Is S3645 covered by Medicare?

Accepted Answer

Coverage for S3645 (Hiv-1 antibody testing of or) depends on medical necessity and specific Medicare guidelines. Check the applicable Local Coverage Determination (LCD) or National Coverage Determination (NCD) for detailed coverage criteria. Private insurers may have different coverage policies.

Question 5

What documentation is required for S3645?

Accepted Answer

Documentation for S3645 should include: the medical necessity for the item or service, supporting diagnosis codes (ICD-10), prescription or order from the treating physician, and proof that the item meets quality standards. Some items may require additional documentation like a Certificate of Medical Necessity (CMN).