HCPCS Level II · Outpatient PPS (temporary codes)
C9399Unclassified drugs or biologicals
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Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About C9399
C9399 is an HCPCS Level II code in the C series (outpatient PPS (temporary codes)), describing unclassified drugs or biologicals.
It was added to HCPCS effective 01/01/2004.
Its Medicare coverage code is "D", meaning special Medicare coverage instructions apply.
Details
- Short description
- Unclassified drugs or biolog
- Date added
- 01/01/2004
- Action effective
- 01/01/2004
- BETOS
- O1E
Related C93xx codes
- C9311Injection, eplontersen, 1 mg (code may be used for medicare when drug administered under the direct supervision of a physician, not for use when drug is self administered)
- C9312Injection, trabectedin (apotex), not therapeutically equivalent to j9362, 0.01 mg
- C9313Injection, pivekimab sunirine-pvzy, 0.01 mg
- C9352Microporous collagen implantable tube (neuragen nerve guide), per centimeter length
- C9353Microporous collagen implantable slit tube (neurawrap nerve protector), per centimeter length
- C9354Acellular pericardial tissue matrix of non-human origin (veritas), per square centimeter
- C9355Collagen nerve cuff (neuromatrix), per 0.5 centimeter length
- C9356Tendon, porous matrix of cross-linked collagen and glycosaminoglycan matrix (tenoglide tendon protector sheet), per square centimeter
- C9358Dermal substitute, native, non-denatured collagen, fetal bovine origin (surgimend collagen matrix), per 0.5 square centimeters
- C9359Porous purified collagen matrix bone void filler (integra mozaik osteoconductive scaffold putty, integra os osteoconductive scaffold putty), per 0.5 cc
- C9360Dermal substitute, native, non-denatured collagen, neonatal bovine origin (surgimend collagen matrix), per 0.5 square centimeters
- C9361Collagen matrix nerve wrap (neuromend collagen nerve wrap), per 0.5 centimeter length
Common questions about C9399
Is HCPCS C9399 still valid?
- Yes. C9399 is active in the CMS October 2026 HCPCS file.
Does Medicare cover C9399?
- Its coverage code is "D": special Medicare coverage instructions apply. Check the local coverage determination for your region.