Expanded diagnostic clustersa within the ACG® system, designated by the authors as chronic conditions
| Expanded Diagnostic Cluster code | Label |
| Not an EDC. Itemised separately within the ACG software | Asthma |
| Not an EDC. Itemised separately within the ACG software | Hypertension |
| Not an EDC. Itemised separately within the ACG software | Diabetes |
| Not an EDC. Itemised separately within the ACG software | Arthritis |
| ADM02 | Surgical aftercare (e.g. heart valve replacement, colostomy) |
| ADM03 | Transplant status (e.g. heart transplant, bone marrow transplant) |
| ALL06 | Disorders of the immune system |
| CAR03 | Ischemic heart disease (excluding acute myocardial infarction) |
| CAR04 | Congenital heart disease |
| CAR05 | Congestive heart failure |
| CAR06 | Cardiac valve disorders |
| CAR07 | Cardiomyopathy |
| CAR09 | Cardiac arrhythmia |
| CAR10 | Generalsed atherosclerosis |
| CAR11 | Disorders of lipoid metabolism |
| CAR12 | Acute myocardial infarction |
| CAR16 | Cardiovascular disorders, other (e.g. sub-acute bacterial endocarditis) |
| EAR08 | Deafness, hearing loss |
| END02 | Osteoporosis |
| END04 | Thyroid disease |
| END05 | Other endocrine disorders (including diabetes insipidus) |
| EYE02 | Blindness |
| EYE03 | Retinal disorders (excluding diabetic retinopathy) |
| EYE06 | Cataract, aphakia |
| EYE08 | Glaucoma |
| EYE13 | Diabetic retinopathy |
| FRE03 | Endometriosis |
| FRE12 | Utero-vaginal prolapse |
| GAS02 | Inflammatory bowel disease |
| GAS05 | Chronic liver disease |
| GAS08 | Gastro-oesophageal reflux |
| GAS09 | Irritable bowel syndrome |
| GAS10 | Diverticular disease colon |
| GAS12 | Chronic pancreatitis |
| GAS13 | Lactose intolerance |
| GSU06 | Chronic cystic disease of the breast |
| GSU08 | Varicose veins of lower extremities |
| GSU11 | Peripheral vascular disease |
| GSU13 | Aortic aneurysm |
| GTC01 | Chromosomal anomalies |
| GTC02 | Inherited metabolic disorders |
| GUR01 | Vesicoureteral reflux |
| GUR03 | Hypospadias, other penile anomalies |
| GUR04 | Prostatic hypertrophy |
| GUR09 | Renal calculi |
| GUR10 | Prostatitis |
| HEM01 | Hemolytic anaemia |
| HEM02 | Iron deficiency, other deficiency anaemias |
| HEM05 | Aplastic anaemia |
| HEM03 or HEM 06 | Thromboplebitis and DVT (deep vein thrombosis) |
| HEM07 | Hemophilia, coagulation disorder |
| HEM08 | Hematologic disorders, other (including secondary polycythaemia) |
| INF01 | Tuberculosis |
| INF04 | HIV, AIDS |
| MAL01 | Malignant neoplasms of the skin |
| MAL02 | Low impact malignant neoplasms |
| MAL03 | High impact malignant neoplasms |
| MAL04 | Malignant neoplasms, breast |
| MAL05 | Malignant neoplasms, cervix, uterus |
| MAL06 | Malignant neoplasms, ovary |
| MAL07 | Malignant neoplasms, esophagus |
| MAL08 | Malignant neoplasms, kidney |
| MAL09 | Malignant neoplasms, liver and biliary tract |
| MAL10 | Malignant neoplasms, lung |
| MAL11 | Malignant neoplasms, lymphomas |
| MAL12 | Malignant neoplasms, colorectal |
| MAL13 | Malignant neoplasms, pancreas |
| MAL14 | Malignant neoplasms, prostate |
| MAL15 | Malignant neoplasms, stomach |
| MAL16 | Acute leukemia |
| MAL18 | Malignant neoplasms, bladder |
| MUS06 | Kyphoscoliosis |
| MUS07 | Congenital hip disclocation |
| MUS11 | Congenital anomalies of limbs, hands, and feet |
| MUS13 | Cervical pain syndromes |
| MUS14 | Low back pain |
| NUR03 | Peripheral neuropathy, neuritis |
| NUR05 | Cerebrovascular disease |
| NUR06 | Parkinson's disease |
| NUR07 | Seizure disorder |
| NUR08 | Multiple sclerosis |
| NUR09 | Muscular dystrophy |
| NUR11 | Dementia and delirium |
| NUR12 | Quadriplegia and paraplegia |
| NUR16 | Spinal cord injury/disorders |
| NUR17 | Paralytic syndromes, other |
| NUR18 | Cerebral palsy |
| NUR19 | Developmental disorder |
| NUR21 | Neurologic disorders, other (e.g. Huntingdon's chorea) |
| NUT03 | Obesity |
| PSY01 | Anxiety, neuroses |
| PSY02 | Substance use |
| PSY04 | Behaviour problems |
| PSY05 | Attention deficit disorder |
| PSY07 | Schizophrenia and affective psychosis |
| PSY08 | Personality disorders |
| PSY09 | Depression |
| REC01 | Cleft lip and palate |
| REC03 | Chronic ulcer of the skin |
| REN01 | Chronic renal failure |
| REN04 | Nephritis, nephrosis |
| REN05 | Renal disorders, other |
| RES03 | Cystic fibrosis |
| RES04 | Emphysema, chronic bronchitis, COPD (chronic obstructive pulmonary disease) |
| RES06 | Sleep apnea |
| RES08 | Pulmonary embolism |
| RES09 | Tracheostomy |
| RES11 | Respiratory disorders, other (e.g. pneumoconiosis) |
| RHU01 | Autoimmune and connective tissue diseases |
| RHU02 | Gout |
| RHU03 | Arthropathy (e.g. pyogenic arthritis) |
| SKN02 | Dermatitis and eczema |
| SKN12 | Psoriasis |
| SKN13 | Disorders of hair and follicles (e.g. alopecia) |
↵a Details of expanded diagnostic clusters (EDCs) obtained from the Johns Hopkins University Adjusted Clinical Groups (ACG) Case-Mix System Reference Manual version 7.17 Bloomberg: John Hopkins University, 2005. Copyright, used by permission.