Code

CMS HCPCS file
HCPCS codeQ9993
Billing unit1 mg
Descriptor
Injection, triamcinolone acetonide, preservative-free, extended-release, microsphere formulation, 1 mg
Short descriptor
Inj., triamcinolone ext rel
Code set
HCPCS Level II, maintained by CMS
Effective
Jan 1, 2019

The billing unit is read from the descriptor. Confirm it against the CMS file before billing.

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Q9993: common questions

Is Q9993 a CPT code?
No. Q9993 is a HCPCS Level II code, maintained by CMS, that identifies the drug supplied. CPT codes are five-digit numbers from the AMA that describe services. Giving the drug, for example an injection or infusion, is usually reported with a separate CPT administration code. CPT codes for drug administration.
What is one billing unit of Q9993?
One unit of Q9993 is 1 mg, as stated in the code's descriptor. Units to report = dose given ÷ 1 mg. J-code billing units.

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