HCPCS

HCPCS Code AS001: Physician assistant, nurse practitioner, or clinical nurse specialist services

AS001 is a HCPCS code used to identify a healthcare procedure, service, or supply related to Physician assistant, nurse practitioner, or clinical nurse specialist services. You may see this code on claims, billing records, explanations of benefits, preauthorization paperwork, or procedure documentation. HCPCS codes are used to standardize how healthcare services, supplies, equipment, transportation, and certain procedures are documented and billed. Coverage indicator: C.

Reviewed by HealthAssure Clinical TeamUpdated 22 May 2026

What is this code?

HCPCS codes are used to standardize how healthcare services, supplies, equipment, transportation, and certain procedures are documented and billed. Coverage indicator: C.

When is it used?

  • Used in procedure coding, claims, and care documentation.
  • Coverage code: C
  • Processing note: FOR ASSISTANT SURGEON SERVICES MODIFIERS 80, 81, 82, AK, AL, AM, * AN, AS, AU, AV, AW, AY, QB, QU SEE MCM SECTION 15044.

What it does not mean

  • The presence of a procedure code does not by itself explain why a service was needed or whether it was appropriate in a specific case.

Where you may see this code

You may see this code on claims, billing records, explanations of benefits, preauthorization paperwork, or procedure documentation.

Frequently asked questions

Code details

CodeAS001
SystemHCPCS
Display namePhysician assistant, nurse practitioner, or clinical nurse specialist services
DescriptionAssistant at surgery service

Flags

BillableNo
Valid clinical useNo

Source

SourceHCPCS
Version2026.07
Releasejul-2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from HCPCS. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.