Question 1

What is HCPCS code P9021?

Accepted Answer

HCPCS code P9021 is "Red blood cells unit". Red blood cells, each unit

Question 2

What category is P9021 in?

Accepted Answer

P9021 belongs to HCPCS Category P (Pathology and Laboratory).

Question 3

When should I use HCPCS code P9021?

Accepted Answer

Use P9021 when billing for red blood cells unit. 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 P9021 covered by Medicare?

Accepted Answer

Coverage for P9021 (Red blood cells unit) 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 P9021?

Accepted Answer

Documentation for P9021 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).