evekhm/cms_iom_500 huggingface dataset:
(Medicare Claims Processing Manual Crosswalk)
Medicare Claims Processing Manual Chapter 12 - Physicians/Nonphysician Practitioners Crosswalk Crosswalk Chap.                              Sect. Int.Pub. 13 Carrier Pub. 14-3 PMs Description12 10 B3-2020 General12 20  B3-15000  Medicare Physicians Fee Schedule (MPFS) 12 20.1  B3-15006  Method for Computing Fee Schedule Amount 12 20.2    Relative Value Units (RVUs) 12 20.3 B3-15010 Bundled Services/Supplies12 20.4  B3-15024  Summary of Adjustments to Fee Schedule Computations 12 20.4.1  B3-15032  Participating Versus Nonparticipating Differential 12 20.4.2  B3-15036  Site of Service Payment Differential 12 20.4.3  B3-15044  Assistant at Surgery Services 12 20.4.4 B3-15900.2 Supplies12 20.4.5 B3-15055 Allowable Adjustments12 20.4.6  B3-15028  Payment Change Due to Unusual Circumstances (Modifier 52)Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description (Modifier 52) 12 20.5  B3-15054  No Adjustments in Fee Schedule Amounts 12 20.6  B3-15058 B-03-007 Update Factor for Fee Schedule Services 12 20.7  B3-15064  Comparability of Payment Provision of Delegation of Authority By CMS to Railroad Retirement Board 12 30  B3-15068  Correct Coding Policy 12 30.1  B3-15100  Digestive System (Codes 40000-49999) 12 30.2  B3-15200  Urinary and Male Genital Systems (Codes 50010-55899) 12 30.3  B3-15300  Otolaryngology and Audiology/Speech/Language Tests and Treatments (Codes V5299, V5362-V5364, 69000-69979, and 92502-92599) 12 30.4  B3-15360  Echocardiography Services (Codes 93303 - 93350) 12 30.5  B3-15400  Chemotherapy Administration (Codes 96400-96549) 12     30.6 B3-15501-
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B3-15501.1  Evaluation and Management Service Codes - General (Codes 99201-99499) 12 30.6.1    Selection of Level of Evaluation and Management Service 12 30.6.2    Billing for Medically Necessary Visit on Same Occasion as Preventive Medicine Service Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12 30.6.3  B3-4820 - 4824  Payment for Immunosuppressive Therapy Management 12 30.6.4     E and M Services Furnished Incident to Physicians Service by Nonphysician Practitioners 12     Physicians in Group Practice 12 30.6.6  B3-4820 - 4824  Payment for Evaluation and Management Services Provided During Global Period of Surgery 12 30.6.7  B3-15502  Payment for Office/Outpatient Visits (Codes 99201-99215) 12 30.6.8  B3-15504  Payment for Hospital Observation Services (Codes 99217-99220) 12 30.6.9  B3-15505 -     B3-15505.2  Payment for Inpatient Hospital Visits - General (Codes 99221 - 99239) 12 30.6.9.1    Payment for Initial Hospital Care Services (Codes 99221 - 99223) 12 30.6.9.2    Subsequent Hospital Visit and Hospital Discharge Management (Codes 99231-99239) 12 30.6.10  B3-15506  Consultations (Codes 99241 - 99275) 12 30.6.11  B3-15507  Emergency Department Visits (Codes 99281-99288) 12 30.6.12  B3-15508  Critical Care Visits and Neonatal Intensive Care (Codes 99291-99292) Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12               30.6.13 B3-15509 -    B3-15509.1  Nursing Facility Visits (Codes 99301-99313) 12 30.6.14  B3-15510  Home Care and Domiciliary Care Visits (Codes 99348-99349) 12 30.6.15  B3-15511 -
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B3-15511.3  Prolonged Services and Standby Services (Codes 99354-99360) 12 30.6.15.1    Prolonged Services (Codes 99354  99359) (ZZZ codes) 12 30.6.15.2    Prolonged Services Without Face-to-Face Service (Codes 99358-99359) 12 30.6.15.3    Physician Standby Service (Code 99360) 12 30.6.16  B3-15512  Case Management Services (Codes 99362 and 99371-99373) 12 30.6.17 B3-15515,B3-15066  Home Services (Codes 99341 - 99350) 12 40  B3-4820  Surgeons and Global Surgery 12 40.1 B3-4821,B3-15900.2, B3-15011,  B3-4820-  B3-4831  Definition of a Global Surgical Package 12 40.2  B3-4822  Billing Requirements for Global Surgeries Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12 40.3  B3-4823  Claims Review for Global Surgeries 12                        40.4 B3-4824, B3-4825,B3-7100-B3-7120.7  Adjudication of Claims for Global Surgeries 12 40.5 B3-4825 Postpayment Issues12 40.6 B3-4826, B3-15038,B3-15056, B3-4826  Claims for Multiple Surgeries 12 40.7  B3-4827, B3-15040  Claims for Bilateral Surgeries 12 40.8  B3-4828, B3-15046  Claims for Co-Surgeons and Team Surgeons 12 40.9  B3-4829  Procedures Billed With Two or More Surgical Modifiers 12 50 B3-4830, B3-15018.B3-15018.K,  B3-4830C,  B3-4830D  Payment Conditions for Anesthesiology Services 12 60 B3-15020 AB-01-47
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(CR1499) Payment Conditions for Pathology Services 12 70  B3-15022  Payment Conditions for Radiology Services 12 80  B3-15014  Services of Physicians Furnished in Providers or to Patients of Providers 12 80.1  B3-2220  Coverage of Physicians' Services Provided in Com prehensive Outpatient Rehabilitation FacilityChap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description Comprehensive Outpatient Rehabilitation Facility 12 80.2  B3-2260- B3-2260.3  Rural Health Clinic and Federally Qualified Health Center Services 12 80.3  B3-15026  Unusual Travel (CPT Code 99082) 12 90    Physicians Practicing in Special Settings 12 90.1  B3-2020.5  Physicians in Federal Hospitals 12 90.2    Physician Billing for End-Stage Renal Disease Services 12                     90.2.1 B3-1506.2 -B3-15062.1  Inpatient Hospital Visits with Dialysis Patients 12 90.3 B3-2265,B3-2265.4  Physicians' Services Performed in Ambulatory Surgical Centers (ASC) 12 90.4 B3-3350,B3-15052  Billing and Payment in a Health Professional Shortage Areas (HPSAs) 12 90.4.1  B3-3350.1  Informing the Physician Community 12 90.4.2  B3-3350.2  Detailing HPSA Locations 12 90.4.3  B3-3350.3  Claims Coding Requirements 12 90.4.4 B3-3350.4 Payment12 90.4.5  B3-3350.5  Services Eligible for HPSA Bonus Payments Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12
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90.4.6 B3-3350.6 Remittance Messages12 90.4.7 B3-3350.7 Postpayment Review12 90.4.8 B3-3350.8,B3-13320,  B3-13320.1,  B3-13322.3 Reporting12 100  B3-2020.7, B3-8201,  B3-15016  Teaching Physician Services 12 100.1    Payment for Physician Services in Teaching Settings Under the MPFS 12 100.1.1    Evaluation and Management (E/M) Services 12 100.1.2 Surgical Procedures12 100.1.3 Psychiatry12 100.1.4 Time-Based Codes12 100.1.5    Other Complex or High-Risk Procedures 12 100.1.6 Miscellaneous12 100.1.7  B3-15016  Assistants at Surgery in Teaching Hospitals 12 100.1.8  B3-8204, B3-15016  Physician Billing in the Teaching Setting Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12 100.2  B3-2020.8, B3-8030  Interns and Residents 12
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110 B3-16001, B3-2156,B3-15004, B3-4112, B3-15024  Physician Assistant (PA) Services Payment Methodology 12 110.1  B3-16001  Limitations for Assistant-at-Surgery Services 12 110.2  B3-4112, B3-2472.4  Mental Health Limitation 12 110.3 B3-16001, B3-15044,B3-2156 PM-B-99-16 PA Billing to Carrier 12 120 B3-16002,B3-2158- B3-2160,  B3-4112, B3-2472-2472.4  Nurse Practitioner (NP) And Clinical Nurse Specialist (CNS) Services   12 120.1  B3-2158E, B3-2160E,  B3-3040.4  Direct Billing and Payment 12 130  B3-16004, B3-5257  Nurse-Midwife Services 12 130.1 B3-16004A, B3-16004B,B3-5257B,  B3-3040.4, B3-17001.1  Payment for Services 12 130.2  B3-16004C, B3-5257C  Global Allowances 12 140  B3-16003, B3-16003 A,  B3-3040.4, B3-4172  Certified Registered Nurse Anesthetist (CRNA) Services Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12 140.1  B3-16003, B3-4172.1  Qualified Anesthetists 12 140.1.1  B3-4172.2  Issuance of UPINs 12 140.1.2  B3-4172.3  Annual Review of CRNA Certifications 12 140.2  B3-16003C, B3-4830A  Entity or Individual to Whom CRNA Fee Schedule is Payable 12 140.3  B3-16003D and E  CRNA Fee Schedule Payment 12 140.3.1  B3-16003F  CRNA Conversion Factors Used on or After January 1, 1997 12 140.3.2  B3-15018G  Anesthesia Time and Calculation of Anesthesia Time Units 12      140.3.3 Billing Modifiers12 140.3.4  B3-4172.5  General
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After January 1, 1997 12 140.3.2  B3-15018G  Anesthesia Time and Calculation of Anesthesia Time Units 12      140.3.3 Billing Modifiers12 140.3.4  B3-4172.5  General Billing Instructions 12 140.4    CRNA Special Billing and Payment Situations 12 140.4.1    An Anesthesiologist and CRNA Work Together 12 140.4.2  B3-4172.6  CRNA and an Anesthesiologist in a Single Anesthesia Procedure 12 140.4.3  B3-16003H  Payment for Medical or Surgical Services Furnished by CRNAs  Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12 140.4.4  B3-16003I,  PM B-01-69 Conversion Factors for Anesthesia Services of CRNAs Furnished on or After January 1, 1992 12 150  B3-2152, B3-17000  Clinical Social Worker (CSW) Services 12 160  B3-2150, B3-2070.2  Independent Psychologist Services 12
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160.1 Payment12 170  B3-2150  Clinical Psychologist Services 12 170.1 B3-2150, B3-17001.1 Payment12 180  B3-15513 B-00-65 Care Plan Oversight Services 12 180.1 B3-15513 B-00-65 Care Plan Oversight Billing Requirements 12 190 A3-3497,A3-3660.2 B3-4159, B3-15516 AB-01-69,  AB-02-05 Medicare Payment for Telehealth Services 12 190.1 Background12 190.2 Eligibility Criteria12 190.3    List of Medicare Telehealth Services 12 190.4    Conditions of Payment 12 190.5    Payment Methodology for Physician/Practitioner at the Distant Site 12 190.6    Originating Site Facility Fee Payment Methodology Chap. Sect. Int. Pub. 13 Carrier Pub. 14-3 PMs Description 12 190.6.1    Submission of Telehealth Claims for Distant Site Practitioners 12 190.6.2    Exception for Sotre and Forward (Non-interactive) Telehealth 12 190.7    Carrier Editing of Telehealth Claims 12 200  B3-15050  Allergy Testing and Immunotherapy 12 210  B3-2470  Outpatient Mental Health Limitation 12 210.1  B3-2472-B3-2472.5  Application of the Limitation
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Medicare Claims Processing Manual Chapter 13 - Radiology Services and Other Diagnostic Procedures Crosswalk New Chap. New Sect. Int. Pub. 13 Carrier Pub. 14 SNF Pub 12 PMs                            Other Description13 10  B3-15021.1    ICD -9-CM Coding for Diagnostic Tests 13 10.1   SNF-533   Billing Part B Radiology Services and Other Diagnostic Procedures 13 20  B3-15022    Payment Conditions for Radiology Services 13 20.1 Professional Component (PC)13 20.2 Technical Component (TC)13 20.2.1      Hospital and Skilled Nursing Facility (SNF) Patients 13 20.2.2      Services Not Furnished in Hospitals 13 20.2.3      Services Furnished in Leased Departments 13 20.2.4  B3-15048    Purchased Diagnostic Tests - Carriers 13 20.2.4.1 Carrier Payment Rules13 20.2.4.2      Payment to Physician for Purchased Diagnostic Tests New Chap. New  Sect. Int. Pub. 13 Carrier Pub. 14 SNF Pub 12 PMs Other Description 13 30                                         Computerized Axial Tomography (CT)Procedures 13 30.1      Low Osmolar Contrast Media (LOCM) (HCPCS Codes A4644-A4646) 13 30.1.1  Payment Criteria13 30.1.2  Payment Level13 30.1.3   SNF-533.1F   SNF Billing and Intermediary Payment for Contrast Material Other Than Low Osmolar Contrast Material (LOCM) (Radiology) 13 30.1.3.1   SNF-533.1G   Intermediary Payment for Low Osmolar Contrast Material (LOCM) (Radiology) 13 40 Magnetic Resonance Imaging (MRI)Procedures 13 40.1 A3-3665 B3-4602,    R1 883A3, R1 795B3 Magnetic Resonance Angiography 13 40.1.1  Magnetic Resonance AngiographyCoverage Summary 13 40.1.2  HCPCS Coding Requirements13 40.1.3      Special Billing Instructions for RHCs and FQHCs New Chap. New  Sect. Int. Pub. 13 Carrier Pub. 14 SNF Pub 12 PMs Other Description 13 40.1.4
(Medicare Claims Processing Manual)
Payment Requirements13 50      Nuclear Medicine (CPT 78000 Through 79999) 13 50.1 Payments for Radionuclides13 50.2 Stressing Agent13 50.2.1   SNF-533.1I   Intermediary Payment for IV Persantine 13 50.2.2  SNF-533.3 Intermediary Payment for Adenosine13 50.3      Application of Multiple Procedure Policy (CPT Modifier 51) 13 50.4      Generation and Interpretation of Automated Data 13 60   SNF-533.2 AB-02-115  Positron Emission Tomography (PET) Scans 13 60.1    AB-02-115  Expanded Coverage of PET Scans for Claims with Dates of Service on or After July 1, 2002 13 60.2    AB-02-065  Expanded Coverage of PET Scans for Claims with Dates of Service on or After October 1, 2002 13 60.2.1    AB-02-065  Coverage for Myocardial Viability New Chap. New  Sect. Int. Pub. 13 Carrier Pub. 14 SNF Pub 12 PMs Other Description 13 60.3                                           Intermediary Postpayment Review13 60.4    AB-01-168  Use of Gamma cameras and Full ring and Partial Ring PET Scanners for PET Scans 13 70 Radiation Oncology (TherapeuticRadiology) 13 70.1 Weekly Radiation Therapy Management(CPT 77419-77430) 13 70.2 Services Bundled Into TreatmentManagement Codes 13 70.3      Radiation Treatment Delivery (CPT 77401-77417) 13 70.4      Clinical Brachytherapy (CPT Codes 77750-77799) 13 70.5      Radiation Physics Services (CPT Codes 77300-77399) 13 80      Supervision and Interpretation (S&I) Codes and Interventional Radiology 13 80.1 Physician Presence13 80.2 Multiple Procedure ReductionNew Chap. New  Sect. Int. Pub. 13 Carrier Pub. 14 SNF Pub 12 PMs Other Description 13
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90 B3-2070.4,B3-15022.G , B3-4131,  B3-4831    Services of Portable X-Ray Suppliers 13 90.1 Professional Component13 90.2 Technical Component13 90.3    B-03-049  Transportation Component (HCPCS Codes R0070-R0076) 13 90.4      Set-Up Component (HCPCS Code Q0092) 13 90.5   SNF 533.1J   Transportation of Equipment Billed by a SNF to an Intermediary 13 100  15023    Interpretation of Diagnostic Tests 13 100.1      X-Rays and EKGs Furnished to Emergency Room Patients 13 110 SNF-533.1,SNF-533.1A,    B, C, D, E TM 368(CR1323) Special Billing Instructions for Claims Submitted to Intermediaries 13 110.1  Aborted Procedure13 110.2  Combined Procedures (Radiology)13 110.3  SNF-533.1H Payment for RadiopharmaceuticalsNew Chap. New  Sect. Int. Pub. 13 Carrier Pub. 14 SNF Pub 12 PMs Other Description 13 120   SNF-533.4   Radiology or Other Diagnostic Unlisted Service or Procedure Billing Instructions for Intermediary Claims 13 130                    EMC Formats13 140 A3-3631.n B3-4181 SNF-533.5   Bone Mass Measurements 13 140.1 A3-3631.n B3-4181.1 SNF-533.5A   Conditions of Coverage 13 140.2 A3-3631.n B3-4181.2 SNF-533.5B Frequency Standard13 140.3 A3-3631.n B3-4181.3,B3-4181.4 SNF-533.5C   Payment Methodology and HCPCS Coding
(Medicare Claims Processing Manual Crosswalk)
Medicare Claims Processing Manual Chapter 14 - Ambulatory Surgical Centers Crosswalk to Old Manual Sections  New  Chap. New  Sect. Int Pub. 13-3 Carrier Pub. 14-3 Program Memos Other
(Medicare Claims Processing Manual Crosswalk)
New  Chap. New  Sect. Int Pub. 13-3 Carrier Pub. 14-3 Program Memos Other                      Description14 10 B3-2265 General14 10.1  B3-2265.1   Definition of Ambulatory Surgical Center (ASC) 14 10.2  B3-2265.3 AB-00-29  42 CFR 416.180-200 Ambul atory Surgical Center Services on ASC List 14 10.3  B3-2265.2   Services Furnished in ASCs Which Are Not on ASC Facility Code List 14 10.4 B3-2265.4,B3-2266 AB-01-141, AB-01-121  Coverage of Services in ASCs Which Are Not on the ASC Facility Code List 14 20  B3-2266 AB-01-141,   AB-01-121  List of Covered Ambulatory Surgical Center Procedures 14 20.1  B3-2266.1   Nature and Applicability of ASC List 14 20.2  B3-2266.2   Types of Services Included on the List 14 20.3  B3-2266.3   Rebundling of CPT Codes 14 30 B3-5243.1 Rate-Setting Policies14 30.1     Where to Obtain Current Rates and List of Covered Services New  Chap. New  Sect. Int Pub. 13-3 Carrier Pub. 14-3 Program Memos Other Description 14 40  B3-5243   Payment for Ambulatory Surgery 14 40.1  B3-5243.1    Payment to Ambulatory Surgical Centers for Non-ASC Services 14 40.2  B3-5243.2   Carrier Adjustment of Base Payment Rates 14 40.3  B3-5243.3   Payment for Intraocular Lens (IOL) 14 40.4  B3-5243.4   Payment for Terminated Procedures 14 40.5  B3-5243.5   Payment for Multiple Procedures 14 40.6  B3-5243.6   Payment for Extracorporeal Shock Wave Lithotripsy (ESWL) 14 50  B3-4020.3 AB-00-28  ASC Procedures for Completing the Form CMS-1500 14 60   AB-00-28  Medicare Summary Notices (MSN) 14 70   AB-03-032  Ambulatory Surgical Center (ASC) HCPCS Additions, Deletions, and Master Listing
(Medicare Claims Processing Manual)
Medicare Claims Processing Manual  Chapter 15 - Ambulance   Table of Contents                                                  (Rev. 12268; Issued: 09- 28-23)           (Rev. 12414; Issued: 12- 19-23)  Transmittals for Chapter 15  10 - Overview  10.1 -  Authorities  10.1.1 -  Statutes And Regulations  10.1.2 -  Other References to Ambulance Related Policies in the CMS Internet Only Manuals  10.2 -  Summary of the Benefit  10.3 -  Definitions  10.4 -  Additional Introductory Guidelines  20 - Payment Rule s 20.1 -  Payment Under the Ambulance Fee Schedule 20.1.1 -  General  20.1.2 -  Jurisdiction  20.1.3 -  Services Provided 20.1.4 -  Components of the Ambulance Fee Schedule  20.1.5  - ZIP Code Determines Fee Schedule Amounts  20.1.5.1 -  CMS Supplied National ZIP Code File and National Ambulance Fee Schedule File  20.1.6 -  Contractor Determination of Fee Schedule Amounts  20.2 -  Payment for Mileage Charges  20.3 -  Air Ambulance  20.4 -  Ambulance Inflation Factor (AIF)  20.5 -  Documentation Requirements  20.6 -  Payment for Non- Emergency BLS Trips to/from ESRD Facilities  30 - General Billing Guidelines  30.1 -  Multi- Carrier System (MCS) Guidelines  30.1.1 -  MCS  Coding Requirements for Suppliers  30.1.2 -  Coding Instructions for Paper and Electronic Claim Form s 30.1.3 -  Coding Instructions for Form CMS -1491  30.1.4 -  CWF Editing of Ambulance Claims for Inpatients  30.2 -  Fiscal Intermediary Shared System (FISS) Guidelines  30.2.1 -  A/B MAC (A) Bill Processing Guidelines Effective April 1, 2002, as a Result of Fee Schedule Implementation  30.2.2 -  SNF Billing  30.2.3 -  Indian Health Services/Tribal Billing  30.2.4 -  Non -covered Charges on Institutional Ambulance Claims  40 - Medical Conditions List and Instructions  10 - Overview  (Rev. 1696; Issued:  03- 06-09; Effective/Implementation Date:  04 -06-09)  10.1 - Authorities  (Rev. 1696; Issued:  03- 06-09; Effective/Implementation Date:  04 -06-09)
(Medicare Claims Processing Manual)
10.1 - Authorities  (Rev. 1696; Issued:  03- 06-09; Effective/Implementation Date:  04 -06-09)  10.1.1 - Statutes and Regulations  (Rev. 1696; Issued:  03- 06-09; Effective/Implementation Date:  04 -06-09)  Section 1861(s) (7) of the Social Security Act (Act) establishes an ambulance service as a Medicare Part B service.  Payment for ambulance services is addressed at 1834(l) of the Act.  Coverage rules are addressed at 42 Code of Federal Regulations (CFR) 410.40.  Additional rules, including rules regarding vehicular and staffing requirements, are specified at 42 CFR 410.41.  Payment rules under the fee schedule established in 2002 are specified at 42 CFR Part 414, Subpart H (414.601 et seq.).  Payment rules for ambulances services furnished by a critical access hospital (CAH) or by an entity owned and operated by a CAH are specified at 42 CFR 413.70(b)(5).  Other general Medicare provisions apply to ambulance services.  See Title XVIII of the Act and 42 CFR Parts 400 to 429 to determine applicability.  10.1.2 - Other References to Ambulance Related Policies in the CMS Internet Only Manuals (IOM)  (Rev. 1696; Issued:  03- 06-09; Effective/Implementation Date:  04 -06-09)  Coverage: Manual instructions regarding coverage of ambulance services, including specifications for vehicular and staffing requirements, are specified in the Internet -Only Manual (IOM), Pub. 100- 02, Medicare Benefit Policy Manual, chapter 10.   Medical Review: Manual instructions regarding medical review for ambulance services are specified in the IOM, Pub.100- 08, Medicare Program Integrity Manual, chapter 6.   Payment and Claims Processing: This chapter restates previously issued instructions to Medicare fee-for-service claim processing contractors for processing claims under the Part B ambulance fee schedule (FS).  For historical reference, refer to http://www.cms.gov/Medicare/Medicare -Fee-for-Service -Payment/AmbulanceFeeSchedule/index.html   on the CMS website to view the previous version of this chapter.
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10.2 - Summary of the Benefit  (Rev. 1696; Issued:  03- 06-09; Effective/Implementation Date:  04 -06-09)  Ambulance services are covered under Medicare Part B.  However, a Part B payment for an ambulance service furnished to a Medicare beneficiary is available only if the following, fundamental conditions are met:    Actual transportation of the beneficiary occurs.    The beneficiary is transported to an appropriate destination.   The transportation by ambulance must be medically necessary, i.e., the beneficiarys medical condition is such that other forms of transportation are medically contraindicated.    The ambulance provider/supplier meets all applicable vehicle, staffing, billing, and reporting requirements.    The transportation is not  part of a Part A service.   Other requirements specified in this chapter or in the above -cited CMS Manuals may also apply to the provider/supplier or to a particular transport or billing.   10.3 - Definitions  (Rev. 3076, Issued: 09- 24-14, Effective: Upon Implementation of ICD -10 ASC X12: 01- 01-12, Implementation: ICD -10: Upon Implementation of ICD -10 ASC X12: 09- 16-14)  Most of the definitions previously found in this chapter can now be found in IOM Pub. 100- 02, Medicare Benefit Policy Manual, chapter 10 -  Ambulance Services.  Other definitions pertaining to payment and claims processing follow.   A/B MAC (A)   Definition: For the purposes of this chapter only, the term refers to those contractors that process claims for institutionally -based ambulance providers billed on the ASC X12 837 institutional claim transaction or Form CMS -1450.   A/B MAC (B)   Definition: For the purposes of this chapter only, the term refers to those contractors that process claims for ambulance suppliers billed on the ASC X12 837professional claim transaction or a CMS -1500 form.  Date of Service