- Carcinomaphobia 300.29
- Carcinomatosis
- Carcinosarcoma (M8980/3) - see also Neoplasm, by site, malignant
- Cardia, cardial - see condition
- Cardiac - see also condition
- Cardialgia (see also Pain, precordial) 786.51
- Cardiectasis - see Hypertrophy, cardiac
- Cardiochalasia 530.81
- Cardiomalacia (see also Degeneration, myocardial) 429.1
- Cardiomegalia glycogenica diffusa 271.0
- Cardiomegaly (see also Hypertrophy, cardiac) 429.3
- Cardiomyoliposis (see also Degeneration, myocardial) 429.1
- Cardiomyopathy (congestive) (constrictive) (familial) (infiltrative) (obstructive) (restrictive) (sporadic) 425.4
- Cardionephritis - see Hypertension, cardiorenal
- Cardionephropathy - see Hypertension, cardiorenal
- Cardionephrosis - see Hypertension, cardiorenal
- Cardioneurosis 306.2
- Cardiopathia nigra 416.0
- Cardiopathy (see also Disease, heart) 429.9
- Cardiopericarditis (see also Pericarditis) 423.9
- Cardiophobia 300.29
- Cardioptosis 746.87
