| Disease | ICD-9-CM Diagnosis Codes | ICD-9-CM Procedure Codes | CPT Codes |
|---|---|---|---|
| T1DM | 250.x1 or 250.x3 | – | – |
| T2DM | 250.x0 or 250.x2 | – | – |
| NAFLD/NASH | 571.8x | – | – |
| Hypertension | 401.xx, 402.xx, 403.xx, 404.xx, 405.xx | – | – |
| Dyslipidemia | 272.xx | – | – |
| Obesity | 278.00, 278.01, V85.3x, V85.4x | – | – |
| Bariatric surgery | V45.86, 44.31x, 44.38x, 44.39x, 44.68x, 44.95x | – | 43644, 43645, 43770, 43775, 43842-43848 |
| Gastrointestinal side effects | 536.8x, 536.3x, 536.4x, 787.01, 780.02, 787.03, 787.3, 789.0x, 564.00, 564.01, 564.02, 564.03, 564.09, 787.91 | ||
| Amputations and ulcerations | 997.6x, V49.7x, V49.6x | 84.1x | 28800-28825, 27880-27889 |
| Mental illness | 290.xx-311.xx | – | – |
| Anxiety | 300.xx | – | – |
| Depression | 296.2x, 296.3x, 300.4x, 309.0x, 309.lx, 311.xx | – | – |
Note: One occurrence of the codes was required to capture the targeted comorbidities of interest.
CPT = Current Procedural Terminology; ICD-9-CM = International Classification of Diseases, Ninth Revision, Clinical Modification; NAFLD/NASH = nonalcoholic fatty liver disease/nonalcoholic steatohepatitis; T1DM = type 1 diabetes mellitus; T2DM = type 2 diabetes mellitus.