In short

OnabotulinumtoxinA is billed under HCPCS J0585 — Injection, onabotulinumtoxinA, 1 unit. One billing unit is 1 unit.

J0585 code details

Reference

Code
J0585 — Injection, onabotulinumtoxinA, 1 unitMed-Code curated
Billing unit
1 unit
Same code in the directory
Botox
Pharmacologic class
Acetylcholine Release Inhibitor; Neuromuscular BlockerFrom the FDA listings below

FDA-listed products

Finished products whose name and route match this directory entry.

Products matching OnabotulinumtoxinA in Med-Code's directory
ProductStrengthForm · routeLabelerProduct NDC
BotoxonabotulinumtoxinaBotulinum toxin type a 100 [USP'U]/1Injection, Powder, Lyophilized, For solutionIntradermal, IntramuscularAllergan, Inc.0023-1145
BotoxonabotulinumtoxinaBotulinum toxin type a 200 [USP'U]/1Injection, Powder, Lyophilized, For solutionIntradermal, IntramuscularAllergan, Inc.0023-3921
BotoxonabotulinumtoxinaBotulinum toxin type a 100 [USP'U]/1Injection, Powder, Lyophilized, For solutionIntradermal, IntramuscularSportpharm LLC85766-155
BOTOX CosmeticonabotulinumtoxinaBotulinum toxin type a 50 [USP'U]/1Injection, Powder, Lyophilized, For solutionIntramuscularAllergan, Inc.0023-3919
BOTOX CosmeticonabotulinumtoxinaBotulinum toxin type a 100 [USP'U]/1Injection, Powder, Lyophilized, For solutionIntramuscularAllergan, Inc.0023-9232

NDCs billed under J0585

CMS’s ASP NDC–HCPCS crosswalk (effective October 1, 2026 through December 31, 2026) assigns 4 NDCs to J0585 for Botox and Botox Cosmetic. Billing units per package are CMS’s figures for this code’s unit.

NDCs assigned to J0585 in the CMS ASP crosswalk
DrugNDC (11-digit)LabelerPackageBilling units per package
Botox00023-1145-01Allergan, Inc.1100
Botox00023-3921-02Allergan, Inc.1200
Botox Cosmetic00023-3919-50Allergan, Inc.150
Botox Cosmetic00023-9232-01Allergan, Inc.1100

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