This code system https://bluebutton.cms.gov/assets/ig/CodeSystem-carr-num defines the following codes:
| Code | Display | Definition |
| 00510 | Alabama - CAHABA | Alabama - CAHABA |
| 00511 | Georgia - CAHABA | Georgia - CAHABA |
| 00512 | Mississippi - CAHABA (eff. 2000) | Mississippi - CAHABA (eff. 2000) |
| 00520 | Arkansas BC/BS | Arkansas BC/BS |
| 00521 | New Mexico - Arkansas BC/BS (term. 2008) (replaced by MAC #04202) | New Mexico - Arkansas BC/BS (term. 2008) (replaced by MAC #04202) |
| 00522 | Oklahoma - Arkansas BC/BS (term. 2008) (replaced by MAC #04302) | Oklahoma - Arkansas BC/BS (term. 2008) (replaced by MAC #04302) |
| 00523 | Missouri East - Arkansas BC/BS (term. 2008) (replaced by MAC #05392) | Missouri East - Arkansas BC/BS (term. 2008) (replaced by MAC #05392) |
| 00524 | Rhode Island - Arkansas BC/BS (eff. 2004) | Rhode Island - Arkansas BC/BS (eff. 2004) |
| 00528 | Louisiana - Arkansas BS | Louisiana - Arkansas BS |
| 00590 | Florida - First Coast | Florida - First Coast |
| 00591 | Connecticut - First Coast (eff. 2000) | Connecticut - First Coast (eff. 2000) |
| 00630 | Indiana - Administar | Indiana - Administar |
| 00635 | DMERC-B - Administar (replaced by MAC #17003) | DMERC-B - Administar (replaced by MAC #17003) |
| 00640 | Iowa - Wellmark, Inc. | Iowa - Wellmark, Inc. |
| 00645 | Nebraska - Iowa BS | Nebraska - Iowa BS |
| 00650 | Kansas BCBS (term. 2008) (replaced by MAC #05202) | Kansas BCBS (term. 2008) (replaced by MAC #05202) |
| 00655 | Nebraska - Kansas BC/BS (term. 2008) (replaced by MAC #05402) | Nebraska - Kansas BC/BS (term. 2008) (replaced by MAC #05402) |
| 00660 | Kentucky - Administar | Kentucky - Administar |
| 00740 | Western Missouri - Kansas BS (term.2008) (replaced by MAC #05302) | Western Missouri - Kansas BS (term.2008) (replaced by MAC #05302) |
| 00751 | Montana BC/BS (replaced by MAC # 03202) | Montana BC/BS (replaced by MAC # 03202) |
| 00801 | New York - Healthnow | New York - Healthnow |
| 00803 | New York - Empire BS | New York - Empire BS |
| 00805 | New Jersey - Empire BS | New Jersey - Empire BS |
| 00811 | DMERC (A) - Healthnow (eff. 2000) (replaced by MAC #16003) | DMERC (A) - Healthnow (eff. 2000) (replaced by MAC #16003) |
| 00820 | North Dakota - Noridian (replaced by MAC #03302) | North Dakota - Noridian (replaced by MAC #03302) |
| 00823 | Utah - Noridian (eff. 12/1/2005) (replaced by MAC #03502) | Utah - Noridian (eff. 12/1/2005) (replaced by MAC #03502) |
| 00824 | Colorado - Noridian (term. 2008) (replaced by MAC #04102) | Colorado - Noridian (term. 2008) (replaced by MAC #04102) |
| 00825 | Wyoming - Noridian (replaced by MAC #03602) | Wyoming - Noridian (replaced by MAC #03602) |
| 00826 | Iowa - Noridian (term. 2008) (replaced by MAC #05102) | Iowa - Noridian (term. 2008) (replaced by MAC #05102) |
| 00831 | Alaska - Noridian | Alaska - Noridian |
| 00832 | Arizona - Noridian (replaced by MAC # 03102) | Arizona - Noridian (replaced by MAC # 03102) |
| 00833 | Hawaii - Noridian | Hawaii - Noridian |
| 00834 | Nevada - Noridian | Nevada - Noridian |
| 00835 | Oregon - Noridian | Oregon - Noridian |
| 00836 | Washington - Noridian | Washington - Noridian |
| 00865 | Pennsylvania - Highmark | Pennsylvania - Highmark |
| 00870 | Rhode Island BS (term. 2004) | Rhode Island BS (term. 2004) |
| 00880 | South Carolina - Palmetto | South Carolina - Palmetto |
| 00882 | RRB - South Carolina PGBA (eff. 2000) | RRB - South Carolina PGBA (eff. 2000) |
| 00883 | Ohio - Palmetto (eff. 2002) | Ohio - Palmetto (eff. 2002) |
| 00884 | West Virginia - Palmetto (eff. 2002) | West Virginia - Palmetto (eff. 2002) |
| 00885 | DMERC C - Palmetto (replaced by MAC #18003) | DMERC C - Palmetto (replaced by MAC #18003) |
| 00889 | South Dakota - Noridian (eff. 4/1/2006) (replaced by MAC # 03402) | South Dakota - Noridian (eff. 4/1/2006) (replaced by MAC # 03402) |
| 00900 | Texas - Trailblazer (term. 2008) (replaced by MAC # 04402) | Texas - Trailblazer (term. 2008) (replaced by MAC # 04402) |
| 00901 | Maryland - Trailblazer | Maryland - Trailblazer |
| 00902 | Delaware - Trailblazer | Delaware - Trailblazer |
| 00903 | District of Columbia - Trailblazer | District of Columbia - Trailblazer |
| 00904 | Virginia - Trailblazer (eff. 2000) | Virginia - Trailblazer (eff. 2000) |
| 00910 | Utah BS | Utah BS |
| 00951 | Wisconsin - Wisconsin Phy Svc | Wisconsin - Wisconsin Phy Svc |
| 00952 | Illinois - Wisconsin Phy Svc | Illinois - Wisconsin Phy Svc |
| 00953 | Michigan - Wisconsin Phy Svc | Michigan - Wisconsin Phy Svc |
| 00954 | Minnesota - Wisconsin Phy Svc (eff. 2000) | Minnesota - Wisconsin Phy Svc (eff. 2000) |
| 00973 | Puerto Rico - Triple S, Inc. | Puerto Rico - Triple S, Inc. |
| 00974 | Triple-S, Inc. - Virgin Islands | Triple-S, Inc. - Virgin Islands |
| 02050 | California - TOLIC (term. 2000) | California - TOLIC (term. 2000) |
| 05130 | Idaho - CIGNA | Idaho - CIGNA |
| 05302 | Western Missouri (eff. 3/2008) | Western Missouri (eff. 3/2008) |
| 05440 | Tennessee - CIGNA | Tennessee - CIGNA |
| 05535 | North Carolina - CIGNA | North Carolina - CIGNA |
| 05655 | DMERC-D Alaska - CIGNA (replaced by MAC #19003) | DMERC-D Alaska - CIGNA (replaced by MAC #19003) |
| 10071 | Railroad Board Travelers (term. 2000) | Railroad Board Travelers (term. 2000) |
| 10230 | Connecticut - Metra Health (term. 2000) | Connecticut - Metra Health (term. 2000) |
| 10240 | Minnesota - Metra Health (term. 2000) | Minnesota - Metra Health (term. 2000) |
| 10250 | Mississippi - Metra Health (term. 2000) | Mississippi - Metra Health (term. 2000) |
| 10490 | Virginia - Metra Health (term. 2000) | Virginia - Metra Health (term. 2000) |
| 10555 | DMERC A - Travelers Insurance Co. (term. 2000) | DMERC A - Travelers Insurance Co. (term. 2000) |
| 14330 | New York - GHI | New York - GHI |
| 16360 | Ohio - Nationwide Insurance Co. (term. 2002) | Ohio - Nationwide Insurance Co. (term. 2002) |
| 16510 | West Virginia - Nationwide Insur Co. (term. 2002) | West Virginia - Nationwide Insur Co. (term. 2002) |
| 31140 | N. California - National Heritage Ins. | N. California - National Heritage Ins. |
| 31142 | Maine - National Heritage Ins. | Maine - National Heritage Ins. |
| 31143 | Massachusetts - National Heritage Ins. | Massachusetts - National Heritage Ins. |
| 31144 | New Hampshire - National Heritage Ins. | New Hampshire - National Heritage Ins. |
| 31145 | Vermont - National Heritage Ins. | Vermont - National Heritage Ins. |
| 31146 | So. California - NHIC (eff. 2000) | So. California - NHIC (eff. 2000) |
| 80884 | Contractor ID for Physician Risk Adjustment Data (data not sent through NCH, but through Palmetto) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Medicare Administrative Contractors (MACs) JURISDICTION 3 -- Part B MACs | Contractor ID for Physician Risk Adjustment Data (data not sent through NCH, but through Palmetto) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Medicare Administrative Contractors (MACs) JURISDICTION 3 -- Part B MACs |
| 03102 | Arizona (eff. 12/1/06) (replaces carrier #00832) | Arizona (eff. 12/1/06) (replaces carrier #00832) |
| 03202 | Montana (eff. 12/1/06) (replaces carrier #00751) | Montana (eff. 12/1/06) (replaces carrier #00751) |
| 03302 | N. Dakota (eff. 12/1/06) (replaces carrier #00820) | N. Dakota (eff. 12/1/06) (replaces carrier #00820) |
| 03402 | S. Dakota (eff. 12/1/06) (replaces carrier #00889) | S. Dakota (eff. 12/1/06) (replaces carrier #00889) |
| 03502 | Utah (eff. 12/1/06) (replaces carrier #00823) | Utah (eff. 12/1/06) (replaces carrier #00823) |
| 03602 | Wyoming (eff. 12/1/06) (replaces carrier #00825) JURISDICTION 4 -- Part B MACs | Wyoming (eff. 12/1/06) (replaces carrier #00825) JURISDICTION 4 -- Part B MACs |
| 04102 | Colorado (eff. 3/24/08) (replaces carrier #00824) | Colorado (eff. 3/24/08) (replaces carrier #00824) |
| 04202 | New Mexico (eff. 3/1/08 (replaces carrier #00521) | New Mexico (eff. 3/1/08 (replaces carrier #00521) |
| 04302 | Oklahoma (eff. 3/1/08) (replaces carrier #00522) | Oklahoma (eff. 3/1/08) (replaces carrier #00522) |
| 04402 | Texas (eff. 6/13/08) (replaces carrier #00900) JURISDICTION 5 -- Part B MACs | Texas (eff. 6/13/08) (replaces carrier #00900) JURISDICTION 5 -- Part B MACs |
| 05102 | Iowa (eff.2/1/08) (replaces carrier #00826) | Iowa (eff.2/1/08) (replaces carrier #00826) |
| 05202 | Kansas (eff. 3/1/08) (replaces carrier #00650) | Kansas (eff. 3/1/08) (replaces carrier #00650) |
| 05302 | W. Missouri (eff. 3/1/08) (replaces carrier #00651 or 00740) | W. Missouri (eff. 3/1/08) (replaces carrier #00651 or 00740) |
| 05392 | E. Missouri (eff. 6/1/08) (replaces carrier #00523) | E. Missouri (eff. 6/1/08) (replaces carrier #00523) |
| 05402 | Nebraska (eff. 3/1/08) (replaces carrier #00655) Durable Medical Equipment (DME) MACs | Nebraska (eff. 3/1/08) (replaces carrier #00655) Durable Medical Equipment (DME) MACs |
| 16003 | National Heritage Insur Co (NHIC) (eff. 7/1/06) (replaces carrier #00811) | National Heritage Insur Co (NHIC) (eff. 7/1/06) (replaces carrier #00811) |
| 17003 | Administar Federal, Inc. (eff. 7/1/06) (replaces carrier # 00635) | Administar Federal, Inc. (eff. 7/1/06) (replaces carrier # 00635) |
| 18003 | Palmetto GBA, LLC (eff. 6/1/07) (replaces carrier #00885) | Palmetto GBA, LLC (eff. 6/1/07) (replaces carrier #00885) |
| 19003 | Noridan Administrative Services (eff. 10/1/06) (replaces carrier #05655) | Noridan Administrative Services (eff. 10/1/06) (replaces carrier #05655) |
