Abbreviations use in medical billing.

• DOS : Date of service.

• DOB : Date of birth.

• DOD : Date of death.

• DOA : Date of accident.

• AMA : American Medical Association.

• CMS : Centers for Medicare and Medicaid Services.

• CPT : Current Procedural Terminology.

• DME : Durable Medical Equipment.

• Dx : Diagnosis code.

• EOB : Explanation of Benefits.

• ERA : Electronic Remittance Advice.

• E/M : Evaluation and Management section of the CPT codes (99202 to 99499).

• ICD : International Classification of Diseases.

• NPI : National Provider Identifier.

• POS : Place of Service.

• COB : Coordination of Benefits.

• MSP : Medicare Secondary Payer.

• EDI : Electronic Data Interchange.

• MRN : Medical Record Number..

• PEC : Pre-existing Condition.

• EFT : Electronic Funds Transfer.

• PCP : Primary Care Physician.

• SSN : Social Security Number.

• AOB : Assignment of Benefits.

• DME : Durable Medical Equipment.

• PHI : Protected Health Information.

• ATD : Applied To Deductible.

• BCBS : Blue Cross Blue Shield.

• SOF : Signature on File.

• EMR : Electronic Medical Record.

• HIPPA : Health Insurance Portability and Accountability Act.

• HMO : Health Maintenance Organization.

• PPO : Preferred Provider Organization.

• TPA : Third-Party Administrator.

• TIN : Tax Identification Number.

• TAT : Turnaround time.

• TFL : Timely filing limit.

• POTF : Proof of timely filing.

• AFL : After filing limit.

• RA : Remittance Advice.

• CARC : Claim Adjustment Reason Code.

• RARC : Remittance Advice Remark Code.

• PR : Patient Responsibility.

• OA : Other Adjustment.

• CHIP : Children’s Health Insurance Program.

• MCO : Managed Care Organization.

• RVU : Relative Value Unit.

• BHO : Behavioral Health Organization.

• CSR : Customer Service Representative.

• DDE : Direct Data Entry.

• DME : Durable Medical Equipment.

• EIN : Employer Identification Number.

• GHP : Group Health Plan.

• HHS : Department of Health and Human Services.

• HSA : Health Savings Account.

• IRF : Inpatient Rehabilitation Facility.

• IPF : Inpatient Psychiatric Facility.

• J-codes : HCPCS code set for injectable drugs.

• KPI : Key Performance Indicator.

• LCD : Local Coverage Determination.

• NCD : National Coverage Determination.

• MAC : Medicare Administrative Contractor.

• NDC : National Drug Code.

• NP : Nurse Practitioner.

• OON : Out of Network.

• PMPM : Per Member Per Month.

• RCM : Revenue Cycle Management.

• NF : Nursing Facility.

• SNF : Skilled Nursing Facility.

• TOS : Type of Service.

• VOB : Verification of Benefits.

• WC : Workers’ Compensation.

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