Temporary G codes are assigned to services and procedures that are under review before being included in the CPT coding system. Payment for these services is under the jurisdiction of the local carriers.

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• G4038

  Vascular surgery mips specialty set

• G6001

  Ultrasonic guidance for placement of radiation therapy fields

• G6002

  Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy

• G6003

  Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: up to 5 mev

• G6004

  Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: 6-10 mev

• G6005

  Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: 11-19 mev

• G6006

  Radiation treatment delivery, single treatment area, single port or parallel opposed ports, simple blocks or no blocks: 20 mev or greater

• G6007

  Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: up to 5 mev

• G6008

  Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: 6-10 mev

• G6009

  Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: 11-19 mev

• G6010

  Radiation treatment delivery, 2 separate treatment areas, 3 or more ports on a single treatment area, use of multiple blocks: 20 mev or greater

• G6011

  Radiation treatment delivery, 3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; up to 5 mev

• G6012

  Radiation treatment delivery, 3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev

• G6013

  Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 11-19 mev

• G6014

  Radiation treatment delivery, 3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 20 mev or greater

• G6015

  Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session

• G6016

  Compensator-based beam modulation treatment delivery of inverse planned treatment using 3 or more high resolution (milled or cast) compensator, convergent beam modulated fields, per treatment session

• G6017

  Intra-fraction localization and tracking of target or patient motion during delivery of radiation therapy (eg,3d positional tracking, gating, 3d surface tracking), each fraction of treatment

• G6018

  Ileoscopy, through stoma; with transendoscopic stent placement (includes predilation)

• G6019

  Colonoscopy through stoma; with ablation of tumor(s), polyp(s), or other lesion(s) not amenable to removal by hot biopsy forceps, bipolar cautery or snare technique

• G6020

  Colonoscopy through stoma; with transendoscopic stent placement (includes predilation)

• G6021

  Unlisted procedure, intestine

• G6022

  Sigmoidoscopy, flexible; with ablation of tumor(s), polyp(s), or other lesions(s) not amenable to removal by hot biopsy forceps, bipolar cautery or snare technique

• G6023

  Sigmoidoscopy, flexible; with transendoscopic stent placement (includes predilation)

• G6024

  Colonoscopy, flexible; proximal to splenic flexure; with ablation of tumor(s), polyp(s), or other lesion(s) not amenable to removal by hot biopsy forceps, bipolar cautery or snare technique

• G6025

  Colonoscopy, flexible, proximal to splenic flexure; with transendoscopic stent placement (includes predilation)

• G6027

  Anoscopy, high resolution (hra) (with magnification and chemical agent enhancement); diagnostic, including collection of specimen(s) by brushing or washing when performed

• G6028

  Anoscopy, high resolution (hra) (with magnification and chemical agent enhancement); with biopsy(ies)

• G6030

  Amitriptyline

• G6031

  Benzodiazepines

• G6032

  Desipramine

• G6034

  Doxepin

• G6035

  Gold

• G6036

  Assay of imipramine

• G6037

  Nortriptyline

• G6038

  Salicylate

• G6039

  Acetaminophen

• G6040

  Alcohol (ethanol); any specimen except breath

• G6041

  Alkaloids, urine, quantitative

• G6042

  Amphetamine or methamphetamine

• G6043

  Barbiturates, not elsewhere specified

• G6044

  Cocaine or metabolite

• G6045

  Dihydrocodeinone

• G6046

  Dihydromorphinone

• G6047

  Dihydrotestosterone

• G6048

  Dimethadione

• G6049

  Epiandrosterone

• G6050

  Ethchlorvynol

• G6051

  Flurazepam

• G6052

  Meprobamate

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HCPCS Level II codes and descriptors are approved and maintained jointly by the alpha-numeric editorial panel (consisting of CMS, the Health Insurance Association of America, and the Blue Cross and Blue Shield Association). — Updated 6/4/2026

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