Question 1

What is HCPCS code A7021?

Accepted Answer

HCPCS code A7021 is "Suppl and access lung expan". Supplies and accessories for lung expansion airway clearance, continuous high frequency oscillation, and nebulization device (e.g., handset, nebulizer kit, biofilter)

Question 2

What category is A7021 in?

Accepted Answer

A7021 belongs to HCPCS Category A (Transportation, Medical/Surgical Supplies, Miscellaneous).

Question 3

When should I use HCPCS code A7021?

Accepted Answer

Use A7021 when billing for suppl and access lung expan. 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 A7021 covered by Medicare?

Accepted Answer

Coverage for A7021 (Suppl and access lung expan) 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 A7021?

Accepted Answer

Documentation for A7021 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).