Physician Specialty CodesCode Physician Specialty
01 General Practice
02 General Surgery
03 Allergy/Immunology
04 Otolaryngology
05 Anesthesiology
06 Cardiology
07 Dermatology
08 Family Practice
09 Interventional Pain Management
10 Gastroenterology
11 Internal Medicine
12 Osteopathic Manipulative Therapy
13 Neurology
14 Neurosurgery
15 Available
16 Obstetrics/Gynecology
17 Available
18 Ophthalmology
19 Oral Surgery (dentists only)
20 Orthopedic Surgery
21 Available
22 Pathology
23 Available
24 Plastic and Reconstructive Surgery
25 Physical Medicine and Rehabilitation
26 Psychiatry
27 Available
28 Colorectal Surgery (formerly proctology)
29 Pulmonary Disease
30 Diagnostic Radiology
31 Available
32 Anesthesiologist Assistants
33 Thoracic Surgery
34 Urology
35 Chiropractic
36 Nuclear Medicine
37 Pediatric Medicine
38 Geriatric Medicine
39 Nephrology
40 Hand Surgery
41 Optometry
44 Infectious Disease
46 Endocrinology
48 Podiatry
66 Rheumatology
70 Single or Multispecialty Clinic or Group Practice
72 Pain Management
73 Mass Immunization Roster Biller
74 Radiation Therapy Center
75 Slide Preparation Facilities
76 Peripheral Vascular Disease
77 Vascular Surgery
78 Cardiac Surgery
79 Addiction Medicine
81 Critical Care (Intensivists)
82 Hematology
83 Hematology/Oncology
84 Preventive Medicine
85 Maxillofacial Surgery
86 Neuropsychiatry
90 Medical Oncology
91 Surgical Oncology
92 Radiation Oncology
93 Emergency Medicine
94 Interventional Radiology
98 Gynecological/Oncology
99 Unknown Physician Specialty
Code Physician Specialty
01 General Practice
02 General Surgery
03 Allergy/Immunology
04 Otolaryngology
05 Anesthesiology
06 Cardiology
07 Dermatology
08 Family Practice
09 Interventional Pain Management
10 Gastroenterology
11 Internal Medicine
12 Osteopathic Manipulative Therapy
13 Neurology
14 Neurosurgery
15 Available
16 Obstetrics/Gynecology
17 Available
18 Ophthalmology
19 Oral Surgery (dentists only)
20 Orthopedic Surgery
21 Available
22 Pathology
23 Available
24 Plastic and Reconstructive Surgery
25 Physical Medicine and Rehabilitation
26 Psychiatry
27 Available
28 Colorectal Surgery (formerly proctology)
29 Pulmonary Disease
30 Diagnostic Radiology
31 Available
32 Anesthesiologist Assistants
33 Thoracic Surgery
34 Urology
35 Chiropractic
36 Nuclear Medicine
37 Pediatric Medicine
38 Geriatric Medicine
39 Nephrology
40 Hand Surgery
41 Optometry
44 Infectious Disease
46 Endocrinology
48 Podiatry
66 Rheumatology
70 Single or Multispecialty Clinic or Group Practice
72 Pain Management
73 Mass Immunization Roster Biller
74 Radiation Therapy Center
75 Slide Preparation Facilities
76 Peripheral Vascular Disease
77 Vascular Surgery
78 Cardiac Surgery
79 Addiction Medicine
81 Critical Care (Intensivists)
82 Hematology
83 Hematology/Oncology
84 Preventive Medicine
85 Maxillofacial Surgery
86 Neuropsychiatry
90 Medical Oncology
91 Surgical Oncology
92 Radiation Oncology
93 Emergency Medicine
94 Interventional Radiology
98 Gynecological/Oncology
99 Unknown Physician Specialty
https://www.cms1500claimbilling.com/2010/06/physician-specialty-codes-to-file-claim.html