| Other concept | Connection | Concept | Identifier |
|---|
| Abdominal Cramps | source | COSTAR, 1989-1995 | U000002 |
| Abdomen distended | source | COSTAR, 1989-1995 | 1 |
| Abdominal Injuries | source | COSTAR, 1989-1995 | |
| Abdominal mass | source | COSTAR, 1989-1995 | 3 |
| Abdominal Pain | source | COSTAR, 1989-1995 | |
| ABNORMAL RADIOLOGIC STUDY | source | COSTAR, 1989-1995 | 12 |
| ABNORMAL XRAY | source | COSTAR, 1989-1995 | |
| Congenital Abnormality | source | COSTAR, 1989-1995 | |
| Spontaneous abortion | source | COSTAR, 1989-1995 | U000638 |
| Missed abortion | source | COSTAR, 1989-1995 | |
| Abortion, Septic | source | COSTAR, 1989-1995 | |
| Therapeutic Abortion | source | COSTAR, 1989-1995 | |
| Abruptio Placentae | source | COSTAR, 1989-1995 | |
| Abscess | source | COSTAR, 1989-1995 | 16 |
| Posterior tibial pulse absent | source | COSTAR, 1989-1995 | 18 |
| Acanthosis Nigricans | source | COSTAR, 1989-1995 | 19 |
| Accidents | source | COSTAR, 1989-1995 | 20 |
| Traffic accidents | source | COSTAR, 1989-1995 | U000422 |
| ACCOMMODATION ERROR | source | COSTAR, 1989-1995 | 805 |
| Achondroplasia | source | COSTAR, 1989-1995 | |
| Acidosis | source | COSTAR, 1989-1995 | |
| Renal tubular acidosis | source | COSTAR, 1989-1995 | |
| Acne Vulgaris | source | COSTAR, 1989-1995 | 22 |
| Acquired Immunodeficiency Syndrome | source | COSTAR, 1989-1995 | 23 |
| Acromegaly | source | COSTAR, 1989-1995 | |
| Actinomycosis | source | COSTAR, 1989-1995 | |
| Acute bronchiolitis NOS | source | COSTAR, 1989-1995 | |
| Acute pancreatitis unspecified | source | COSTAR, 1989-1995 | |
| Acute thyroiditis NOS | source | COSTAR, 1989-1995 | |
| Adams-Stokes Syndrome | source | COSTAR, 1989-1995 | |
| Addison's disease | source | COSTAR, 1989-1995 | U000087 |
| Adenocarcinoma | source | COSTAR, 1989-1995 | 26 |
| adenoma | source | COSTAR, 1989-1995 | 27 |
| Adjustment Disorders | source | COSTAR, 1989-1995 | 29 |
| Adrenal Gland Diseases | source | COSTAR, 1989-1995 | U000085 |
| Adrenal gland hypofunction | source | COSTAR, 1989-1995 | 30 |
| Adrenal Gland Neoplasms | source | COSTAR, 1989-1995 | U000088 |
| ADVANCED TROPHIC CHANGES OF THE FOOT | source | COSTAR, 1989-1995 | 31 |
| Aerophagy | source | COSTAR, 1989-1995 | U000018 |
| Agnosia | source | COSTAR, 1989-1995 | |