Question 1

What is HCPCS code G9139?

Accepted Answer

HCPCS code G9139 is "Onc dx cml dx status unknown". Oncology; disease status; chronic myelogenous leukemia, limited to philadelphia chromosome positive and/or bcr-abl positive; extent of disease unknown, staging in progress, not listed (for use in a medicare-approved demonstration project)

Question 2

What category is G9139 in?

Accepted Answer

G9139 belongs to HCPCS Category G (Procedures/Professional Services).

Question 3

When should I use HCPCS code G9139?

Accepted Answer

Use G9139 when billing for onc dx cml dx status unknown. 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 G9139 covered by Medicare?

Accepted Answer

Coverage for G9139 (Onc dx cml dx status unknown) 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 G9139?

Accepted Answer

Documentation for G9139 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).