Q0163
HCPCSDiphenhydramine hcl 50mg
Official HCPCS Level II long descriptor
Diphenhydramine hydrochloride, 50 mg, oral, fda approved prescription anti-emetic, for use as a complete therapeutic substitute for an iv anti-emetic at time of chemotherapy treatment not to exceed a 48 hour dosage regimen
HCPCS Level II code Q0163 is maintained by CMS and is active in the current quarterly release.
Short descriptor
Diphenhydramine hcl 50mg
Added to HCPCS: 1998-04-01
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Where this code sits
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HCPCS Level II July 2026 quarterly update. Centers for Medicare & Medicaid Services (CMS), “July 2026 Alpha-Numeric HCPCS File” (HCPC2026_JUL_ANWEB_06172026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.