| Full description of disease or condition | Control action recommended:
IR – immediately R4 – after 4 weeks R10 after 10 weeks | Is the incapacity certifiable as infectious or contagious? | For SMP purposes, is the incapacity pregnancy related? |
| Cheiropompholyx | R10 | No | No |
| Chemotherapy (with cytotoxic drugs) | None | No | No |
| Chest disease | R4 | No | No |
| Chest Pain | R4 | No | Probably Not |
| Chicken Pox (CP) | R4 | No | No |
| Chill | IR | No | No |
| Chipped bone | R4 | No | No |
| Cholecystectomy | R10 | No | No |
| Chloecystitis | R4 | No | Probably Not |
| Cholera | R10 | Yes | No |
| Chondromalacia | R10 | No | Probably Not |
| Chondromalacia patellae | R10 | No | Probably Not |
| Chondrosarcoma | None | No | No |
| Chorea | None | No | No |
| Chronic bronchitis | R10 | No | No |
| Chronic Fatigue Syndrome (CFS)* | R10 | No | No |
| Chronic Lymphatic Leukaemia (CLL) | None | No | No |
| Chronic Myeloid Leukaemia (CML) | None | No | No |
| Chronic Obstructive Airways Disease (COAD) | R10 | No | No |
| Chronic Obstructive Pulmonary Disease (COPD) | R10 | No | No |
| Chronic renal failure | None | No | Probably Not |
| Cirrhosis | None | No | Probably Not |
| Claudication | None | No | Probably Not |
| Climacteric | R4 | No | No |
| CLL (Chronic Lymphatic Leukaemia) | None | No | No |
| CML (Chronic Myeloid Leukaemia) | None | No | No |
| COAD (Chronic Obstructive Airways disease) | R10 | No | No |
| Coccydinia | R10 | No | Probably Not |
| Coeliac disease | R10 | No | Probably Not |
| Cold, common or catarrhal (febrile) | IR | No | No |
| Colectomy | None | No | No |
| Colic, abdominal or intestinal | R4 | No | No |
| Colic, renal | R4 | No | Probably Not |
| Colic, other | R4 | No | No |
| Colitis | R10 | No | No |
| Colles' fracture | R10 | No | No |
| Colostomy | None | No | No |
| Coma | None | No | No |
| Complications of pregnancy | None | No | Yes |
| Concussion, including cerebral or brain | R4 | No | No |
| Confusional state* | None | No | No |
| Congestion, pleural or pulmonary | R10 | No | Probably Not |
| Congestive cardiac failure | None | No | Probably Not |
| Conjunctivitis | R4 | No | No |
| Connective tissue disorder | None | No | Probably Not |
| Constipation | R4 | No | Probably Not |
| Contact with infectious disease | None | Yes | No |
| Contusions | R4 | No | No |
| COPD (Chronic Obstructive Pulmonary Disease) | R10 | No | No |
| Cor pulmonale | None | No | No |
| Corneal ulcer | R4 | No | No |
| Coronary angioplasty | R10 | No | No |
| Coronary artery disease | R10 | No | Probably Not |
| Coronary atheroma | R10 | No | Probably Not |
| Coronary by-pass surgery | None | No | No |
| Coronary infarct | R10 | No | Probably Not |
| Coronary ischaemia | R10 | No | Probably Not |
| Coronary occlusion | R10 | No | Probably Not |
| Coronary Pain | R10 | No | Probably Not |
| Coronary thrombosis | R10 | No | Probably Not |
| Coryza | IR | No | Probably Not |
| Cough | R4 | No | No |
| CP (Chicken-pox) | R4 | No | No |
| Cracked bone | R10 | No | No |
| Crainiotomy | None | No | No |
| Crescendo angina | None | No | Probably Not |
| Crohn's disease | R10 | No | No |
| CSOM (Chronic Suppurative Otitis Media) | R4 | No | No |
| Curettage | R4 | No | No |
| Cut nerve | None | No | No |
| Cut, septic | R4 | No | No |
| Cut, tendon | R10 | No | No |
| Cut, other | IR | No | No |
| CVA (Cerebro-Vascular Accident) | None | No | Probably Not |
| Cyst, ovarian | R10 | No | Probably Not |
| Cyst, pilonidal | R10 | No | No |
| Cyst, septic | R4 | No | No |
| Cyst, other | R4 | No | No |
| Cystic fibrosis | None | No | No |
| Cystitis | R4 | No | Probably Not |
| Cytotoxic therapy | None | No | No |
