What Is HCPCS Level I/II?
HCPCS is the two-tier code set used to identify medical services and items: Level I is identical to AMA CPT codes; Level II is alphanumeric codes maintained by CMS for products, supplies, and services not covered by CPT.
- DME suppliers, infusion practices, and chemotherapy practices rely heavily on Level II codes (especially J-codes for drugs).
- Track the quarterly HCPCS Level II updates published by CMS — particularly J-code revisions when new biologics receive permanent codes replacing prior J3490/J3590 unclassified codes.
HCPCS Level I/II
Also known as: Healthcare Common Procedure Coding System; HCPCS
HCPCS is the two-tier code set used to identify medical services and items: Level I is identical to AMA CPT codes; Level II is alphanumeric codes maintained by CMS for products, supplies, and services not covered by CPT.
Definition
HCPCS Level I codes are the standard CPT codes (five-digit numeric, AMA-maintained) used for physician and outpatient services. HCPCS Level II codes are five-character alphanumeric (one letter A-V followed by four digits) used for durable medical equipment, prosthetics, orthotics, supplies, drugs administered by clinicians, ambulance services, and other items not in CPT. Level II codes are maintained by CMS through quarterly updates and named under HIPAA. Examples of Level II categories: A-codes (medical/surgical supplies, transport), J-codes (drugs), L-codes (orthotics/prosthetics), Q-codes (temporary CMS codes), G-codes (Medicare-specific procedures).
Example
J3490 (unclassified drug), A4253 (blood glucose test strips, 50 per box), G2211 (Medicare add-on for E/M visit complexity), and L0631 (lumbar-sacral orthosis) are HCPCS Level II codes. CPT 99213 is a HCPCS Level I code.
Common Misconceptions
Some practices believe 'HCPCS' refers only to Level II codes, but HCPCS includes both. Confusion arises because Level I (CPT) is licensed from the AMA while Level II is CMS-published. On a CMS-1500 claim, both Level I and Level II codes go in the same procedure code field.
Practical Application
DME suppliers, infusion practices, and chemotherapy practices rely heavily on Level II codes (especially J-codes for drugs). Track the quarterly HCPCS Level II updates published by CMS — particularly J-code revisions when new biologics receive permanent codes replacing prior J3490/J3590 unclassified codes.
Related Terms
CPT (Current Procedural Terminology)
CPT is the five-digit procedural code set developed and maintained by the American Medical Association that describes medical, surgical, and diagnostic services performed by physicians and qualified health professionals; it is HIPAA-named for use in claims.
Read definition arrow_forwardCMS
CMS is the federal agency within the U.S. Department of Health and Human Services that administers Medicare, jointly administers Medicaid and CHIP with the states, and oversees the Health Insurance Marketplaces and HIPAA administrative simplification.
Read definition arrow_forwardUB-04 form
The UB-04 (also known as CMS-1450) is the standard paper claim form used by institutional providers (hospitals, SNFs, home health, hospice) to bill Medicare and other payers; its electronic equivalent is the 837I (Institutional) HIPAA EDI transaction.
Read definition arrow_forwardCMS-1500 form
The CMS-1500 is the standard paper claim form used by non-institutional providers (physicians, NPPs, suppliers) to bill Medicare and most commercial payers; its electronic equivalent is the 837P (Professional) HIPAA EDI transaction.
Read definition arrow_forwardWhere This Applies on MedPrecision
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