AA = Anesthesia Assistant

AMB = Ambulance Service Supplier (Group File Only)

ASC = Ambulatory Surgical Center (Group File Only)

AU = Audiologist

CH = Chiropractor

CNA = Certified Nurse Anesthetist

CNM = Certified Nurse Midwife

CNS = Certified Clinical Nurse Specialist

CP = Clinical Psychologist

CSW = Clinical Social Worker

DDM = Doctor of Dental Medicine

DDS = Doctor of Dental Surgery

DO = Doctor of Osteopathy

DPM = Podiatrist

FNP = Family Nurse Practitioner

GRP = Group

IDF = Independent Diagnostic Facility (Group File Only)

IPL = Independent Physiological Lab (Group File Only)

LAB = Laboratory (Group File Only)

MD = Medical Doctor

MSC = Mammography Screening Center (Group File Only)

NP = Nurse Practioner

OD = Doctor of Optometry

OT = Occupational Therapist

PA = Physician Assistant

PHS = Public Health Service (Group File Only)

PSY = Psychologist

PT = Physical Therapist

PXS = Portable XRay Supplier (Group File Only)

RNA = Certified Registered Nurse

00 = Carrier wide

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 = Unassigned

16 = Obstetrics/gynecology

17 = Unassigned

18 = Ophthalmology

19 = Oral surgery (dentists only)

20 = Orthopedic surgery

21 = Unassigned

22 = Pathology

23 = Unassigned

24 = Plastic and reconstructive surgery

25 = Physical medicine and rehabilitation

26 = Psychiatry

27 = Unassigned

28 = Colorectal surgery (formerly proctology)

29 = Pulmonary disease

30 = Diagnostic radiology

31 = Unassigned

32 = Anesthesiologist assistant

33 = Thoracic surgery

34 = Urology

35 = Chiropractor, licensed

36 = Nuclear medicine

37 = Pediatric medicine

38 = Geriatric medicine

39 = Nephrology

40 = Hand surgery

41 = Optometry (revised 10/93 to mean optometrist)

42 = Certified nurse midwife (eff 1/87)

43 = Certified registered nurse anesthesiologist (CRNA)

44 = Infectious disease

45 = Mammography screening center

46 = Endocrinology (eff 5/92)

47 = Independent Diagnostic Testing Facility (IDTF)(eff. 6/98)

48 = Podiatry

49 = Ambulatory surgical center formerly miscellaneous)

50 = Nurse practitioner

51 = Medical supply company with certified orthotist (certified by American Board for Certification in Prosthetics And Orthotics)

52 = Medical supply company with certified prosthetist (certified by American Board for Certification In Prosthetics And Orthotics)

53 = Medical supply company with certified prosthetist-orthotist (certified by American Board for Certification in Prosthetics and Orthotics)

54 = Medical supply company not included in 51, 52, or 53. (Revised 10/93 to mean medical supply company for DMERC)

55 = Individual certified orthotist

56 = Individual certified prosthetist

57 = Individual certified prosthetist-orthotist

58 = Individuals not included in 55, 56, or 57 (revised 10/93 to mean medical supply company with registered pharmacist)

59 = Ambulance service supplier, e.g., private ambulance companies, funeralhomes, etc.

60 = Public health or welfare agencies (federal, state, and local)

61 = Voluntary health or charitable agencies (e.G., National Cancer Society, National Heart Associiation, Catholic Charities)62 = Psychologist (billing independently)

63 = Portable X-ray supplier

64 = Audiologist (billing independently)

65 = Physical therapist (independently practicing)

66 = Rheumatology (eff 5/92)Note: during 93/94 DMERC also used this to mean medical supply company with respiratory therapist

67 = Occupational therapist (independently practicing)

68 = Clinical psychologist

69 = Clinical laboratory (billing independently)

70 = Multispecialty clinic or group practice

71 = Registered dietician/nutrition professional

72 = Pain management

73 = Mass immunization roster billersassigned after 5/92)

74 = Radiation therapy centers

75 = Slide preparation facilities

76 = Peripheral vascular disease (eff 5/92)

77 = Vascular surgery (eff 5/92)

78 = Cardiac surgery (eff 5/92)

79 = Addiction medicine (eff 5/92)

80 = Licensed clinical social worker

81 = Critical care (intensivists)(eff 5/92)

82 = Hematology (eff 5/92)

83 = Hematology/oncology (eff 5/92)

84 = Preventive medicine (eff 5/92)

85 = Maxillofacial surgery (eff 5/92)

86 = Neuropsychiatry (eff 5/92)

87 = All other suppliers (e.g. drug and department stores) (note: DMERC used 87 to mean department store from 10/93 through 9/94; recoded eff 10/94 to A7; NCH cross-walked DMERC reported 87 to A7.

88 = Unknown supplier/provider(note: DMERC used 87 to mean grocery store from 10/93 - 9/94; recoded eff 10/94 to A8; NCH cross-walked DMERC reported 88 to A8.

89 = Certified clinical nurse specialist

90 = Medical oncology (eff 5/92)

91 = Surgical oncology (eff 5/92)

92 = Radiation oncology (eff 5/92)

93 = Emergency medicine (eff 5/92)

94 = Interventional radiology (eff 5/92)

95 = Unassigned

96 = Optician (eff 10/93)

97 = Physician assistant (eff 5/92)

98 = Gynecologist/oncologist (eff 10/94)

99 = Unknown physician

A0 = Hospital (eff 10/93) (DMERCs only)

A1 = SNF (eff 10/93) (DMERCs only)

A2 = Intermediate care nursing facility (eff 10/93) (DMERCs only)

A3 = Nursing facility, other (eff 10/93)(DMERCs only)

A4 = HHA (eff 10/93) (DMERCs only)

A5 = Pharmacy (eff 10/93) (DMERCs only)

A6 = Medical supply company with respiratory therapist (eff 10/93) (DMERCs only)

A7 = Department store (for DMERC use:eff 10/94, but cross-walked from code 87 eff 10/93)

A8 = Grocery store (for DMERC use: eff 10/94, but cross-walked from code 88 eff 10/93)