(2023) CPT Level I Codes

The CPT book comprises of CPT Level I codes maintained by American Medical Association classified these codes into six major groups.

HCPCS Level 1 Categories

1. Evaluation and Management (E/M) Codes ranges from CPT 99201 to CPT 99499

2. Anesthesiology Codes ranges from CPT 00100 to CPT 01999

3. Surgery Codes ranges from CPT 10000 to CPT 69990

4. Radiology Codes ranges from CPT 70010 to CPT 79999

5. Pathology and Laboratory Codes ranges from CPT 80002 to CPT 89399

6. Medicine Codes starts ranges CPT 90281 to CPT 99607

These set of CPT codes in each groups are organized into various categories and levels. It is the physician’s responsibility to ensure that documentation reflects the services furnished and that the codes selected reflect those services.

The more work performed by the physicians, the higher the level of code they may bill within the appropriate category.

The billing specialist or alternate source reviews the physician’s documented services and assists with selecting codes that best reflect the extent of the physician’s personal work necessary to furnish the services.

The CPT code range and its sub-classifications are detailed as follows

Evaluation And Management Codes Range From CPT code 99201 Until CPT Code 99399

CPT 99201 – CPT 99215: Office or other outpatient services

CPT 99217 – CPT 99220: Hospital observation services

CPT 99221 – CPT 99239: Hospital inpatient services

C{T 99241 – CPT 99255: Consultations

CPT 99281 – CPT 99288: Emergency department services

CPT 99291 – CPT 99292: Critical care services

CPT 99304 – CPT 99318: Nursing facility services

CPT 99324 – CPT 99337: Domiciliary, rest, home, (eg, boarding home), or custodial care services

CPT 99339 – CPT 99340: Domiciliary, rest, home, (eg, assisted living facility), or home care plan oversight services

CPT 99341 – CPT 99350 Home services

CPT 99354 – CPT 99360 Prolonged services

CPT 99366 – CPT 99368: Case management services

CPT 99374 – CPT 99380: Care plan oversight services

CPT 99381 – CPT 99429: Preventive medicine services

CPT 99441 – CPT 99444: Non-Face-to-Face Physician Services

CPT 99450 – CPT 99456: Special evaluation and management services

CPT 99460 – CPT 99465: Newborn Care Services

CPT 99466 – 99480 Inpatient neonatal intensive care services and pediatric and neonatal critical care services

CPT 99499: Other evaluation and management services

Anesthesia Codes Range From CPT 00100 – CPT 02101

CPT 00100 – CPT 00222: Head

CPT 00300 – CPT 00352: Neck

CPT 00400 – CPT 00474: Thorax (chest wall and shoulder girdle)

CPT 00500 – CPT 00580: Intrathoracic

CPT 00600 – CPT 00670: Spine and spinal cord

CPT 00700 – CPT 00798: Upper abdomen

CPT 00800 – CPT 00884: Lower abdomen

CPT 00900 – CPT 00955: Perineum

CPT 01000 – CPT 01190: Pelvis (except hip)

CPT 01200 – CPT 01274: Upper leg (except knee)

CPT 01300 – CPT 01444: Knee and popliteal area

CPT 01460 – CPT 01522: Lower leg (below knee, includes ankle and foot)

CPT 01600 – CPT 01682: Shoulder and axilla

CPT 01700 – CPT 01784: Upper arm and elbow

CPT 01800 – CPT 01860: Forearm, wrist, and hand

CPT 01900 – CPT 01944: Radiological procedures

CPT 01951 – CPT 01953: Burn excisions or debridement

CPT 01958 – CPT 01969: Obstetric

CPT 01980 – CPT 02101: Other procedures

Surgery CPT Codes Range From CPT 10000 – CPT 69990

CPT 10000 – CPT 10022: General

CPT 10040 – CPT 19499: Integumentary system

CPT 20000 – CPT 22999: Musculoskeletal system: general, head, neck (soft tissues) and thorax, back and flank, spine, abdomen

CPT 23000 – CPT 26989: Musculoskeletal system: shoulder, upper extremity

CPT 26990 – CPT 28899: Musculoskeletal system: pelvis and hip, lower extremity

CPT 29000 – CPT 29909: Musculoskeletal system: casts and strapping, arthroscopy

CPT 30000 – CPT 32999: Respiratory system

CPT 33010 – CPT 37799: Cardiovascular system

CPT 38100 – CPT 38999: Hemic and lymphatic systems

CPT 39000 – CPT 39599: Mediastinum and diaphragm

CPT 40490 – CPT 42999: Digestive system (lips to pharynx)

CPT 43020 – CPT 46999: Digestive system (esophagus to anus)

CPT 47000 – CPT 49999 Digestive system (liver, pancreas, abdomen, peritoneum, omentum, hernia repairs)

CPT 50010 – CPT 53899: Urinary system

CPT 54000 – CPT 55899: Male genital system

CPT 55920 – CPT 55920: Reproductive System Procedures

CPT 55970 – CPT 55980: Intersex surgery

CPT 56300 – CPT 56399: Laparoscopy / hysteroscopy

CPT 56405 – CPT 58999: Female genital system

CPT 59000 – CPT 59899: Maternity care and delivery

CPT 60000 – CPT 60699: Endocrine system

CPT 61000 – CPT 64999: Nervous system

CPT 65091 – CPT 68899: Eye and ocular adnexa

CPT 69000 – CPT 69990: Auditory system

Radiology Codes Range From CPT 70010 – CPT 79999

CPT 70010 – CPT 76499: Diagnostic radiology ( diagnostic imaging )

CPT 76506 – CPT 76999: Diagnostic ultrasound

CPT 77001 – CPT 77032: Radiologic Guidance

CPT 77051 – CPT 77059: Breast, Mammography

CPT 77071 – CPT 77084: Bone / Joint Studies

CPT 77261 – CPT 77799: Radiation oncology

CPT 78000 – CPT 79999: Nuclear medicine

Pathology and Laboratory Codes Range From CPT 80002 – CPT 89399

CPT 80047 – CPT 80092: Organ or disease oriented panels

CPT 80100 – CPT 80103: Drug testing

CPT 80150 – CPT 80299: Therapeutic drug assays

CPT 80400 – CPT 80440: Evocative/suppression testing

CPT 80500 – CPT 80502: Consultations (clinical pathology)

CPT 81000 – CPT 81099: Urinalysis

CPT 82000 – CPT 83887: Chemistry

CPT 83890 – CPT 84999: Molecular diagnostics

CPT 85002 – CPT 85999: Hematology and coagulation

CPT 86000 – CPT 86804: Immunology

CPT 86805 – CPT 86849: Tissue typing

CPT 86850 – CPT 86999: Transfusion medicine

CPT 87001 – CPT 87999: Microbiology

CPT 88000 – CPT 88099: Anatomic pathology: postmortem examination

CPT 88104 – CPT 88199: Anatomic pathology: cytopathology

CPT 88230 – CPT 88299: Anatomic pathology: cytogenetic studies

CPT 88300 – CPT 88399: Surgical pathology

CPT 88720 – CPT 88741: In Vivo (eg, transcutaneous) laboratory procedures

CPT 89049 – CPT 89240: Other procedures

CPT 89250 – CPT 89399: Reproductive medicine procedures

Medicine Codes Range From CPT 90281 – CPT 99607

CPT 90281 – CPT 90799: Immunizations and injections

CPT 90801 – CPT 90899: Psychiatry

CPT 90900 – CPT 90915: Biofeedback

CPT 90918 – CPT 90999: Dialysis

CPT 91000 – CPT 91299: Gastroenterology

CPT 92002 – CPT 92499: Ophthalmology

CPT 92502 – CPT 92700: Special otorhinolaryngologic services

CPT 92950 – CPT 93799: Cardiovascular

CPT 93875 – CPT 93990: Non-invasive vascular diagnostic studies

CPT 94002 – CPT 94799: Pulmonary

CPT 95004 – CPT 95199: Allergy and clinical immunology

CPT 95250 – CPT 95251: Endocrinology

CPT 95805 – CPT 96020: Neurology and neuromuscular procedures

CPT 96040 – CPT 96040: Medical genetics and genetic counseling services

CPT 96100 – CPT 96125: Central nervous system assessments / tests (eg, neuro – cognitive, mental status, speech testing )

CPT 96150 – CPT 96155: Health and behavior assessment / intervention

CPT 96360 – CPT 96549: Hydration, therapeutic, prophylactic, diagnostic injections and infusions, and chemotherapy and other highly complex drug or highly complex biologic agent administration

CPT 96567 – CPT 96571: Photodynamic therapy

CPT 96900 – CPT 96999: Special dermatological procedures

CPT 97001 – CPT 97799: Physical medicine and rehabilitation

CPT 97802 – CPT 97804: Medical nutrition therapy

CPT 97810 – CPT 97814: Acupuncture

CPT 98925 – CPT 98929: Osteopathic manipulative treatment

CPT 98940 – CPT 98943: Chiropractic manipulative treatment