| 12 | Medicare Secondary Working Aged Beneficiary or Spouse with Employer Group Health Plan |
| 13 | Medicare Secondary End-Stage Renal Disease Beneficiary in the 12 Month Coordination Period with an Employer’s Group Health Plan |
| 14 | Medicare Secondary, No-Fault Insurance including Auto is Primary |
| 15 | Medicare Secondary Worker’s Compensation |
| 16 | Medicare Secondary Public Health Service (PHS) or Other Federal Agency |
| 41 | Medicare Secondary Black Lung |
| 42 | Medicare Secondary Veteran’s Administration |
| 43 | Medicare Secondary Disabled Beneficiary Under Age 65 with Large Group Health Plan (LGHP) |
| 47 | Medicare Secondary, Other Liability Insurance is Primary |
| AP | Auto Insurance Policy |
| C1 | Commercial |
| CO | Consolidated Omnibus Budget Reconciliation Act (COBRA) |
| CP | Medicare Conditionally Primary |
| D | Disability |
| DB | Disability Benefits |
| EP | Exclusive Provider Organization |
| FF | Family or Friends |
| GP | Group Policy |
| HM | Health Maintenance Organization (HMO) |
| HN | Health Maintenance Organization (HMO) – Medicare Risk |
| HS | Special Low Income Medicare Beneficiary |
| IN | Indemnity |
| IP | Individual Policy |
| LC | Long Term Care |
| LD | Long Term Policy |
| LI | Life Insurance |
| LT | Litigation |
| MA | Medicare Part A |
| MB | Medicare Part B |
| MC | Medicaid |
| MH | Medigap Part A |
| MI | Medigap Part B |
| MP | Medicare Primary |
| OT | Other |
| PE | Property Insurance – Personal |
| PL | Personal |
| PP | Personal Payment ( Cash – No Insurance ) |
| PR | Preferred Provider Organization (PPO) |
| PS | Point of Service (POS) |
| QM | Qualified Medicare Beneficiary |
| RP | Property Insurance – Real |
| SP | Supplemental Policy |
| TF | Tax Equity Fiscal Responsibility Act (TEFRA) |
| WC | Workers Compensation |
| WU | Wrap Up Policy |