Question 1

What is HCPCS code A4221?

Accepted Answer

HCPCS code A4221 is "Supp non-insulin inf cath/wk". Supplies for maintenance of non-insulin drug infusion catheter, per week (list drugs  separately)

Question 2

What category is A4221 in?

Accepted Answer

A4221 belongs to HCPCS Category A (Transportation, Medical/Surgical Supplies, Miscellaneous).

Question 3

When should I use HCPCS code A4221?

Accepted Answer

Use A4221 when billing for supp non-insulin inf cath/wk. 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 A4221 covered by Medicare?

Accepted Answer

Coverage for A4221 (Supp non-insulin inf cath/wk) 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 A4221?

Accepted Answer

Documentation for A4221 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).