HCPCS Codes - Medical Procedures, Supplies & DME Codes - g0 Codes
HCPCS Procedure, Supply & DME (Durable Medical Equipment) Codes ("g0" Codes):
- G0001 DRAWING BLOOD FOR SPECIMEN HCPCS Code Code
- G0008 administration influenza virus vaccine HCPCS Code Code
- G0009 administration pneumococcal vaccine HCPCS Code Code
- G0010 administration hepatitis b vaccine HCPCS Code Code
- G0027 semen analysis presence andor motility sperm HCPCS Code Code
- G0030 PET IMAGING PREV PET SINGLE HCPCS Code Code
- G0031 PET IMAGING PREV PET MULTPLE HCPCS Code Code
- G0032 PET FOLLOW SPECT 78464 SINGL HCPCS Code Code
- G0033 PET FOLLOW SPECT 78464 MULT HCPCS Code Code
- G0034 PET FOLLOW SPECT 76865 SINGL HCPCS Code Code
- G0035 PET FOLLOW SPECT 78465 MULT HCPCS Code Code
- G0036 PET FOLLOW CORNRY ANGIO SING HCPCS Code Code
- G0037 PET FOLLOW CORNRY ANGIO MULT HCPCS Code Code
- G0038 PET FOLLOW MYOCARD PERF SING HCPCS Code Code
- G0039 PET FOLLOW MYOCARD PERF MULT HCPCS Code Code
- G0040 PET FOLLOW STRESS ECHO SINGL HCPCS Code Code
- G0041 PET FOLLOW STRESS ECHO MULT HCPCS Code Code
- G0042 PET FOLLOW VENTRICULOGM SING HCPCS Code Code
- G0043 PET FOLLOW VENTRICULOGM MULT HCPCS Code Code
- G0044 PET FOLLOWING REST ECG SINGL HCPCS Code Code
- G0045 PET FOLLOWING REST ECG MULT HCPCS Code Code
- G0046 PET FOLLOW STRESS ECG SINGL HCPCS Code Code
- G0047 PET FOLLOW STRESS ECG MULT HCPCS Code Code
- G0101 cervical vaginal cancer screening pelvic clinical HCPCS Code Code
- G0102 prostate cancer screening digital rectal examination HCPCS Code Code
- G0103 prostate cancer screening prostate specific antigen HCPCS Code Code
- G0104 colorectal cancer screening flexible sigmoidoscopy HCPCS Code Code
- G0105 colorectal cancer screening colonoscopy individual at HCPCS Code Code
- G0106 colorectal cancer screening alternative g0104 screening HCPCS Code Code
- G0107 CA SCREEN; FECAL BLOOD TEST HCPCS Code Code
- G0108 diabetes outpatient selfmanagement training services individual HCPCS Code Code
- G0109 diabetes outpatient selfmanagement training services session HCPCS Code Code
- G0110 NETT PULM-REHAB EDUC; IND HCPCS Code Code
- G0111 NETT PULM-REHAB EDUC; GROUP HCPCS Code Code
- G0112 NETT;NUTRITION GUID, INITIAL HCPCS Code Code
- G0113 NETT;NUTRITION GUID,SUBSEQNT HCPCS Code Code
- G0114 NETT; PSYCHOSOCIAL CONSULT HCPCS Code Code
- G0115 NETT; PSYCHOLOGICAL TESTING HCPCS Code Code
- G0116 NETT; PSYCHOSOCIAL COUNSEL HCPCS Code Code
- G0117 glaucoma screening high risk patients furnished HCPCS Code Code
- G0118 glaucoma screening high risk patient furnished HCPCS Code Code
- G0120 colorectal cancer screening alternative g0105 screening HCPCS Code Code
- G0121 colorectal cancer screening colonoscopy individual not HCPCS Code Code
- G0122 colorectal cancer screening barium enema HCPCS Code Code
- G0123 screening cytopathology cervical vaginal any reporting HCPCS Code Code
- G0124 screening cytopathology cervical vaginal any reporting HCPCS Code Code
- G0125 PET IMAGE PULMONARY NODULE HCPCS Code Code
- G0127 trimming dystrophic nails any number HCPCS Code Code
- G0128 direct facetoface patient skilled nursing services HCPCS Code Code
- G0129 occupational therapy requiring skills a qualified HCPCS Code Code
- G0130 single energy xray absorptiometry sexa bone HCPCS Code Code
- G0141 screening cytopathology smears cervical vaginal performed HCPCS Code Code
- G0143 screening cytopathology cervical vaginal any reporting HCPCS Code Code
- G0144 screening cytopathology cervical vaginal any reporting HCPCS Code Code
- G0145 screening cytopathology cervical vaginal any reporting HCPCS Code Code
- G0147 screening cytopathology smears cervical vaginal performed HCPCS Code Code
- G0148 screening cytopathology smears cervical vaginal performed HCPCS Code Code
- G0151 services physical therapist home health setting HCPCS Code Code
- G0152 services occupational therapist home health setting HCPCS Code Code
- G0153 services speech language pathologist home health HCPCS Code Code
- G0154 services skilled nurse home health setting HCPCS Code Code
- G0155 services clinical social worker home health HCPCS Code Code
- G0156 services home health aide home health HCPCS Code Code
- G0166 external counterpulsation per treatment session HCPCS Code Code
- G0168 wound closure utilizing tissue adhesives only HCPCS Code Code
- G0173 linear accelerator stereotactic radiosurgery complete course HCPCS Code Code
- G0175 scheduled interdisciplinary team conference minimum three HCPCS Code Code
- G0176 activity therapy such as music dance HCPCS Code Code
- G0177 training educational services related care treatment HCPCS Code Code
- G0179 physician recertification medicarecovered home health services HCPCS Code Code
- G0180 physician certification medicarecovered home health services HCPCS Code Code
- G0181 physician supervision a patient receiving medicarecovered HCPCS Code Code
- G0182 physician supervision a patient under a HCPCS Code Code
- G0186 destruction localized lesion choroid example choroidal HCPCS Code Code
- G0202 screening mammography producing direct digital image HCPCS Code Code
- G0204 diagnostic mammography producing direct digital image HCPCS Code Code
- G0206 diagnostic mammography producing direct digital image HCPCS Code Code
- G0210 PET IMG WHOLEBODY DXLUNG HCPCS Code Code
- G0211 PET IMG WHOLBODY INIT LUNG HCPCS Code Code
- G0212 PET IMG WHOLEBOD RESTAG LUNG HCPCS Code Code
- G0213 PET IMG WHOLBODY DX HCPCS Code Code
- G0214 PET IMG WHOLEBOD INIT HCPCS Code Code
- G0215 PETIMG WHOLEBOD RESTAG HCPCS Code Code
- G0216 PET IMG WHOLEBOD DX MELANOMA HCPCS Code Code
- G0217 PET IMG WHOLEBOD INIT MELAN HCPCS Code Code
- G0218 PET IMG WHOLEBOD RESTAG MELA HCPCS Code Code
- G0219 pet imaging whole body melanoma noncovered HCPCS Code Code
- G0220 PET IMG WHOLEBOD DX LYMPHOMA HCPCS Code Code
- G0221 PET IMAG WHOLBOD INIT LYMPHO HCPCS Code Code
- G0222 PET IMAG WHOLBOD RESTA LYMPH HCPCS Code Code
- G0223 PET IMAG WHOLBOD REG DX HEAD HCPCS Code Code
- G0224 PET IMAG WHOLBOD REG INI HEA HCPCS Code Code
- G0225 PET WHOL RESTAG HEADNECKONLY HCPCS Code Code
- G0226 PET IMG WHOLBODY DX ESOPHAGL HCPCS Code Code
- G0227 PET IMG WHOLBOD INI ESOPHAGE HCPCS Code Code
- G0228 PET IMG WHOLBOD RESTG ESOPHA HCPCS Code Code
- G0229 PET IMG METABOLOC BRAIN PRES HCPCS Code Code
- G0230 PET MYOCARD VIABILITY POST HCPCS Code Code
- G0231 PET WHBD COLOREC; GAMMA CAM HCPCS Code Code
- G0232 PET WHBD LYMPHOMA; GAMMA CAM HCPCS Code Code
- G0233 PET WHBD MELANOMA; GAMMA CAM HCPCS Code Code
- G0234 PET WHBD PULM NOD; GAMMA CAM HCPCS Code Code
- G0235 pet imaging any site not otherwise HCPCS Code Code
- G0237 therapeutic procedures increase strength endurance respiratory HCPCS Code Code
- G0238 therapeutic procedures improve respiratory function than HCPCS Code Code
- G0239 therapeutic procedures improve respiratory function increase HCPCS Code Code
- G0242 MULTISOURCE PHOTON STER PLAN HCPCS Code Code
- G0243 MULTISOUR PHOTON STERO TREAT HCPCS Code Code
- G0244 OBSERV CARE BY FACILITY TOPT HCPCS Code Code
- G0245 initial physician evaluation management a diabetic HCPCS Code Code
- G0246 followup physician evaluation management a diabetic HCPCS Code Code
- G0247 routine foot care a physician a HCPCS Code Code
- G0248 demonstration at initial use home inr HCPCS Code Code
- G0249 provision test materials equipment home inr HCPCS Code Code
- G0250 physician review interpretation patient management home HCPCS Code Code
- G0251 linear accelerator stereotactic radiosurgery delivery including HCPCS Code Code
- G0252 pet imaging full partialring pet scanners HCPCS Code Code
- G0253 PET IMAGE BRST DECTION RECUR HCPCS Code Code
- G0254 PET IMAGE BRST EVAL TO TX HCPCS Code Code
- G0255 current perception thresholdsensory nerve conduction test HCPCS Code Code
- G0257 unscheduled emergency dialysis treatment an esrd HCPCS Code Code
- G0258 IV INFUSION DURING OBS STAY HCPCS Code Code
- G0259 injection procedure sacroiliac joint arthrograpy HCPCS Code Code
- G0260 injection procedure sacroiliac joint provision anesthetic HCPCS Code Code
- G0263 ADM WITH CHF, CP, ASTHMA HCPCS Code Code
- G0264 ASSMT OTR CHF, CP, ASTHMA HCPCS Code Code
- G0265 cryopreservation freezing storage cells therapeutic use HCPCS Code Code
- G0266 thawing expansion frozen cells therapeutic use HCPCS Code Code
- G0267 bone marrow peripheral stem cell harvest HCPCS Code Code
- G0268 removal impacted cerumen one both ears HCPCS Code Code
- G0269 placement occlusive device into either a HCPCS Code Code
- G0270 medical nutrition therapy reassessment subsequent interventions HCPCS Code Code
- G0271 medical nutrition therapy reassessment subsequent interventions HCPCS Code Code
- G0275 renal artery angiography unilateral bilateral performed HCPCS Code Code
- G0278 iliac artery angiography performed at same HCPCS Code Code
- G0279 EXCORP SHOCK TX, ELBOW EPI HCPCS Code Code
- G0280 EXCORP SHOCK TX OTHER THAN HCPCS Code Code
- G0281 electrical stimulation unattended one more areas HCPCS Code Code
- G0282 electrical stimulation unattended one more areas HCPCS Code Code
- G0283 electrical stimulation unattended one more areas HCPCS Code Code
- G0288 reconstruction computed tomographic angiography aorta surgical HCPCS Code Code
- G0289 arthroscopy knee surgical removal loose body HCPCS Code Code
- G0290 transcatheter placement a drug eluting intracoronary HCPCS Code Code
- G0291 transcatheter placement a drug eluting intracoronary HCPCS Code Code
- G0292 ADM EXP DRUGS,CLINICAL TRIAL HCPCS Code Code
- G0293 noncovered surgical procedures using conscious sedation HCPCS Code Code
- G0294 noncovered procedures using either no anesthesia HCPCS Code Code
- G0295 electromagnetic therapy one more areas wound HCPCS Code Code
- G0296 PET IMGE RESTAG THYROD CANCE HCPCS Code Code
- G0297 insertion single chamber pacing cardioverter defibrillator HCPCS Code Code
- G0298 insertion dual chamber pacing cardioverter defibrillator HCPCS Code Code
- G0299 insertion repositioning electrode lead single chamber HCPCS Code Code
- G0300 insertion repositioning electrode leads dual chamber HCPCS Code Code
- G0302 preoperative pulmonary surgery services preparation lvrs HCPCS Code Code
- G0303 preoperative pulmonary surgery services preparation lvrs HCPCS Code Code
- G0304 preoperative pulmonary surgery services preparation lvrs HCPCS Code Code
- G0305 postdischarge pulmonary surgery services after lvrs HCPCS Code Code
- G0306 complete cbc automated hgb hct rbc HCPCS Code Code
- G0307 complete cbc automated hgb hct rbc HCPCS Code Code
- G0308 end stage renal disease esrd related HCPCS Code Code
- G0309 end stage renal disease esrd related HCPCS Code Code
- G0310 end stage renal disease esrd related HCPCS Code Code
- G0311 end stage renal disease esrd related HCPCS Code Code
- G0312 end stage renal disease esrd related HCPCS Code Code
- G0313 end stage renal disease esrd related HCPCS Code Code
- G0314 end stage renal disease esrd related HCPCS Code Code
- G0315 end stage renal disease esrd related HCPCS Code Code
- G0316 end stage renal disease esrd related HCPCS Code Code
- G0317 end stage renal disease esrd related HCPCS Code Code
- G0318 end stage renal disease esrd related HCPCS Code Code
- G0319 end stage renal disease esrd related HCPCS Code Code
- G0320 end stage renal disease esrd related HCPCS Code Code
- G0321 end stage renal disease esrd related HCPCS Code Code
- G0322 end stage renal disease esrd related HCPCS Code Code
- G0323 end stage renal disease esrd related HCPCS Code Code
- G0324 end stage renal disease esrd related HCPCS Code Code
- G0325 end stage renal disease esrd related HCPCS Code Code
- G0326 end stage renal disease esrd related HCPCS Code Code
- G0327 end stage renal disease esrd related HCPCS Code Code
- G0328 colorectal cancer screening fecal occult blood HCPCS Code Code
- G0329 electromagnetic therapy one more areas chronic HCPCS Code Code
- G0332 services intravenous infusion immunoglobulin prior administration HCPCS Code Code
- G0333 pharmacy dispensing fee inhalation drugs initial HCPCS Code Code
- G0336 PET IMAGING BRAIN ALZHEIMERS HCPCS Code Code
- G0337 hospice evaluation counseling services preelection HCPCS Code Code
- G0338 LINEAR ACCELERATOR STERO PLN HCPCS Code Code
- G0339 imageguided robotic linear acceleratorbased stereotactic radiosurgery HCPCS Code Code
- G0340 imageguided robotic linear acceleratorbased sterotactic radiosurgery HCPCS Code Code
- G0341 percutaneous islet cell transplant includes portal HCPCS Code Code
- G0342 laparoscopy islet cell transplant includes portal HCPCS Code Code
- G0343 laparotomy islet cell transplant includes portal HCPCS Code Code
- G0344 initial preventive physical examination facetoface visit HCPCS Code Code
- G0345 IV INFUSE HYDRATION, INITIAL HCPCS Code Code
- G0346 EACH ADDITIONAL INFUSE HOUR HCPCS Code Code
- G0347 IV INFUSION THERAPY/DIAGNOST HCPCS Code Code
- G0348 EACH ADDITIONAL HR UP TO 8HR HCPCS Code Code
- G0349 ADDITIONAL SEQUENTIAL INFUSE HCPCS Code Code
- G0350 CONCURRENT INFUSION HCPCS Code Code
- G0351 THERAPEUTIC/DIAGNOSTIC INJEC HCPCS Code Code
- G0353 IV PUSH,SINGLE ORINITIAL DRU HCPCS Code Code
- G0354 EACH ADDITION SEQUENTIAL IV HCPCS Code Code
- G0355 CHEMO ADMINISRATE SUBCUT/IM HCPCS Code Code
- G0356 HORMONAL ANTI-NEOPLASTIC HCPCS Code Code
- G0357 IV PUSH SINGLE/INITIAL SUBST HCPCS Code Code
- G0358 IV PUSH EACH ADDITIONAL DRUG HCPCS Code Code
- G0359 CHEMOTHERAPY IV ONE HR INITI HCPCS Code Code
- G0360 EACH ADDITIONAL HR 1-8 HRS HCPCS Code Code
- G0361 PROLONG CHEMO INFUSE>8HRS PU HCPCS Code Code
- G0362 EACH ADD SEQUENTIAL INFUSION HCPCS Code Code
- G0363 IRRIGATE IMPLANTED VENOUS DE HCPCS Code Code
- G0364 bone marrow aspiration performed bone marrow HCPCS Code Code
- G0365 vessel mapping vessels hemodialysis access services HCPCS Code Code
- G0366 electrocardiogram routine ecg at least 12 HCPCS Code Code
- G0367 tracing only interpretation report performed as HCPCS Code Code
- G0368 interepretation report only performed as a HCPCS Code Code
- G0369 PHARM FEE 1ST MONTH TRANSPLA HCPCS Code Code
- G0370 PHARMACY FEE ORAL CANCER ETC HCPCS Code Code
- G0371 PHARM DISPENSE INHALATION 30 HCPCS Code Code
- G0372 physician service required establish document need HCPCS Code Code
- G0374 PHARM DISPENSE INHALATION 90 HCPCS Code Code
- G0375 smoking tobacco use cessation counseling visit HCPCS Code Code
- G0376 smoking tobacco use cessation counseling visit HCPCS Code Code
- G0377 administration vaccine part d drug HCPCS Code Code
- G0378 hospital observation service per hour HCPCS Code Code
- G0379 direct admission patient hospital observation care HCPCS Code Code
- G0380 level 1 hospital emergency visit provided HCPCS Code Code
- G0381 level 2 hospital emergency visit provided HCPCS Code Code
- G0382 level 3 hospital emergency visit provided HCPCS Code Code
- G0383 level 4 hospital emergency visit provided HCPCS Code Code
- G0384 level 5 hospital emergency visit provided HCPCS Code Code
- G0389 ultrasound bscan andor real time image HCPCS Code Code
- G0390 trauma response team associated hospital critical HCPCS Code Code
- G0392 transluminal balloon angioplasty percutaneous maintenance hemodialysis HCPCS Code Code
- G0393 transluminal balloon angioplasty percutaneous maintenance hemodialysis HCPCS Code Code
- G0394 blood occult test eg guaiac feces HCPCS Code Code
- G0396 ALCOHOL/SUBS INTERV 15-30MN HCPCS Code Code
- G0397 ALCOHOL/SUBS INTERV >30 MIN HCPCS Code Code
- G0398 Home sleep study test (HST) with type HCPCS Code Code
- G0399 Home sleep test (HST) with type III HCPCS Code Code
- G0400 Home sleep test (HST) with type IV HCPCS Code Code
- G0402 INITIAL PREVENTIVE PHYSICAL EXAMINATION; FACE-TO-FACE VISIT, SERVICES HCPCS Code Code
- G0403 ELECTROCARDIOGRAM, ROUTINE ECG WITH 12 LEADS; PERFORMED HCPCS Code Code
- G0404 ELECTROCARDIOGRAM, ROUTINE ECG WITH 12 LEADS; TRACING HCPCS Code Code
- G0405 ELECTROCARDIOGRAM, ROUTINE ECG WITH 12 LEADS; INTERPRETATION HCPCS Code Code
- G0406 FOLLOW-UP INPATIENT TELEHEALTH CONSULTATION, LIMITED, PHYSICIANS TYPICALLY HCPCS Code Code
- G0407 FOLLOW-UP INPATIENT TELEHEALTH CONSULTATION, INTERMEDIATE, PHYSICIANS TYPICALLY HCPCS Code Code
- G0408 FOLLOW-UP INPATIENT TELEHEALTH CONSULTATION, COMPLEX, PHYSICIANS TYPICALLY HCPCS Code Code
- G0409 SOCIAL WORK AND PSYCHOLOGICAL SERVICES, DIRECTLY RELATING HCPCS Code Code
- G0410 GROUP PSYCHOTHERAPY OTHER THAN OF A MULTIPLE-FAMILY HCPCS Code Code
- G0411 INTERACTIVE GROUP PSYCHOTHERAPY, IN A PARTIAL HOSPITALIZATION HCPCS Code Code
- G0412 OPEN TREATMENT OF ILIAC SPINE(S), TUBEROSITY AVULSION, HCPCS Code Code
- G0413 PERCUTANEOUS SKELETAL FIXATION OF POSTERIOR PELVIC BONE HCPCS Code Code
- G0414 OPEN TREATMENT OF ANTERIOR PELVIC BONE FRACTURE HCPCS Code Code
- G0415 OPEN TREATMENT OF POSTERIOR PELVIC BONE FRACTURE HCPCS Code Code
- G0416 SURGICAL PATHOLOGY, GROSS AND MICROSCOPIC EXAMINATION FOR HCPCS Code Code
- G0417 SURGICAL PATHOLOGY, GROSS AND MICROSCOPIC EXAMINATION FOR HCPCS Code Code
- G0418 SURGICAL PATHOLOGY, GROSS AND MICROSCOPIC EXAMINATION FOR HCPCS Code Code
- G0419 SURGICAL PATHOLOGY, GROSS AND MICROSCOPIC EXAMINATION FOR HCPCS Code Code
- G0420 Face-to-face educational services related to the care of chronic kidney disease; individual, per session, per one hour HCPCS Code Code
- G0421 Face-to-face educational services related to the care of chronic kidney disease; group, per session, HCPCS Code Code
- G0422 Intensive cardiac rehabilitation; with or without continuous ECG monitoring with exercise, per session HCPCS Code Code
- G0423 Intensive cardiac rehabilitation; with or without continuous ECG monitoring; without exercise, per hour, per session. HCPCS Code Code
- G0424 Pulmonary rehabilitation, including exercise (includes monitoring), per hour,per session HCPCS Code Code
- G0425 Initial inpatient telehealth consultation, typically spends 20 minutes communicating with the patient via telehealth HCPCS Code Code
- G0426 Initial inpatient telehealth consultation, typically spends 40 minutes communicating with the patient via telehealth HCPCS Code Code
- G0427 Initial inpatient telehealth consultation, typically spends 55 minutes communicating with the patient via telehealth HCPCS Code Code
- G0428 Collagen Meniscus Implant procedure for filling meniscal defects (e.g., CMI, collagen scaffold, Mena HCPCS Code Code
- G0429 Dermal Filler injection(s) for the treatment of facial lipodystrophy syndrome (LDS) (e.g.,as a resul HCPCS Code Code
- G0430 Drug screen, qualitative; multiple drug classes, any method, each procedure (e.g, multiple drug test kit) HCPCS Code Code
- G0431 Drug screen, qualitative; single drug class method (eg, immunoassay and enzyme assay), each drug class HCPCS Code Code
- G0432 Infectious agent antibody detection by enzyme-linked immunosorbent assay (ELISA) technique antibody, HCPCS Code Code
- G0433 Infectious agent antibody detection by enzyme-linked immunosorbent assay (ELISA) technique, antibody HCPCS Code Code
- G0435 Infectious agent detection by rapid antibody test of oral mucosa transudate, HIV-1 or HIV-2 screening HCPCS Code Code
* Note: Codes may not be sequential.
Back to list of HCPCS Procedure, Supply & DME Codes
HCPCS Medical Codes & Code Modifiers
(HCPCS is commonly pronounced Hick-Picks.)
Each year, in the United States, health care insurers process over 5 billion claims for payment. For Medicare and other health insurance programs to ensure that these claims are processed in an orderly and consistent manner, standardized coding systems are essential. The HCPCS Level II Code Set is one of the standard code sets used for this purpose. The HCPCS is divided into two principal subsystems, referred to as level I and level II of the HCPCS. Level I of the HCPCS is comprised of CPT (Current Procedural Terminology), a numeric coding system maintained by the American Medical Association (AMA). The CPT is a uniform coding system consisting of descriptive terms and identifying codes that are used primarily to identify medical services and procedures furnished by physicians and other health care professionals. These health care professionals use the CPT to identify services and procedures for which they bill public or private health insurance programs. Decisions regarding the addition, deletion, or revision of CPT codes are made by the AMA. The CPT codes are republished and updated annually by the AMA. Level I of the HCPCS, the CPT codes, does not include codes needed to separately report medical items or services that are regularly billed by suppliers other than physicians.
Level II of the HCPCS is a standardized coding system that is used primarily to identify products, supplies, and services not included in the CPT codes, such as ambulance services and durable medical equipment, prosthetics, orthotics, and supplies (DMEPOS) when used outside a physician's office. Because Medicare and other insurers cover a variety of services, supplies, and equipment that are not identified by CPT codes, the level II HCPCS codes were established for submitting claims for these items. The development and use of level II of the HCPCS began in the 1980's. Level II codes are also referred to as alpha-numeric codes because they consist of a single alphabetical letter followed by 4 numeric digits, while CPT codes are identified using 5 numeric digits.
In October of 2003, the Secretary of HHS delegated authority under the HIPAA legislation to CMS to maintain and distribute HCPCS Level II Codes. As stated in 42 CFR Sec. 414.40 (a) CMS establishes uniform national definitions of services, codes to represent services, and payment modifiers to the codes. Within CMS there is a CMS HCPCS Workgroup which is an internal workgroup comprised of representatives of the major components of CMS, as well as other consultants from pertinent Federal agencies. Prior to December 31, 2003, Level III HCPCS were developed and used by Medicaid State agencies, Medicare contractors, and private insurers in their specific programs or local areas of jurisdiction. For purposes of Medicare, level III codes were also referred to as local codes. Local codes were established when an insurer preferred that suppliers use a local code to identify a service, for which there is no level I or level II code, rather than use a "miscellaneous or not otherwise classified code." The Health Insurance Portability and Accountability Act of 1996 (HIPAA) required CMS to adopt standards for coding systems that are used for reporting health care transactions. We published, in the Federal Register on August 17, 2000 (65 FR 50312), regulations to implement this part of the HIPAA legislation. These regulations provided for the elimination of level III local codes by October 2002, at which time, the level I and level II code sets could be used. The elimination of local codes was postponed, as a result of section 532(a) of BIPA, which continued the use of local codes through December 31, 2003.
(Source: http://www.cms.hhs.gov/MedHCPCSGenInfo/)