| | 2021 ICD-10-CM Codes |
| | A00-B99 Certain infectious and parasitic diseases |
| | C00-D49 Neoplasms |
| | D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism |
| | E00-E89 Endocrine, nutritional and metabolic diseases |
| | F01-F99 Mental, Behavioral and Neurodevelopmental disorders |
| | G00-G99 Diseases of the nervous system |
| | H00-H59 Diseases of the eye and adnexa |
| | H60-H95 Diseases of the ear and mastoid process |
| | I00-I99 Diseases of the circulatory system |
| | J00-J99 Diseases of the respiratory system |
| | K00-K95 Diseases of the digestive system |
| | L00-L99 Diseases of the skin and subcutaneous tissue |
| | M00-M99 Diseases of the musculoskeletal system and connective tissue |
| | N00-N99 Diseases of the genitourinary system |
| | O00-O9A Pregnancy, childbirth and the puerperium |
| | P00-P96 Certain conditions originating in the perinatal period |
| | Q00-Q99 Congenital malformations, deformations and chromosomal abnormalities |
| | R00-R99 Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified |
| | S00-T88 Injury, poisoning and certain other consequences of external causes |
| | V00-Y99 External causes of morbidity |
| | Z00-Z99 Factors influencing |