| Disorder | Symbol(s) | OMIM | Location |
| Acromegaloid features, overgrowth, cleft palate, and hernia (2) | AOCH | 606049 |
Chr.11 |
| Acromesomelic dysplasia, Hunter-Thompson type, 201250 (3) | GDF5, CDMP1, SYNS2, OS5 | 601146 |
20q11.2 |
| Acromesomelic dysplasia, Maroteaux type, 602875 (3) | NPR2, ANPRB, AMDM | 108961 |
9p21-p12 |
| Acropectoral syndrome (2) | ACRPS | 605967 |
7q36 |
| Acropectorovertebral dysplasia (2) | ACRPV | 102510 |
2q36 |
| Action myoclonus-renal failure syndrome, 254900 (3) | SCARB2, CD36L2, LIMPII, AMRF | 602257 |
4q13-q21 |
| Acute insulin response (2) | AIR | 601676 |
1p31 |
| Acyl-CoA dehydrogenase, long chain, deficiency of, 201460 (3) | ACADL, LCAD | 609576 |
2q34-q35 |
| Acyl-CoA dehydrogenase, medium chain, deficiency of, 201450 (3) | ACADM, MCAD | 607008 |
1p31 |
| Acyl-CoA dehydrogenase, short-chain, deficiency of, 201470 (3) | ACADS, SCAD | 606885 |
12q22-qter |
| Adenocarcinoma of lung, response to tyrosine kinase inhibitor in, 211980 (3) | EGFR | 131550 |
7p12.3-p12.1 |
| Adenocarcinoma of lung, somatic, 211980 (3) | BRAF | 164757 |
7q34 |
| Adenocarcinoma of lung, somatic, 211980 (3) | ERBB2, NGL, NEU, HER2 | 164870 |
17q21.1 |
| Adenocarcinoma of lung, somatic, 211980 (3) | PRKN, PARK2, PDJ, LPRS2 | 602544 |
6q25.2-q27 |
| Adenocarcinoma, ovarian, somatic, 604370 (3) | PRKN, PARK2, PDJ, LPRS2 | 602544 |
6q25.2-q27 |
| Adenoma, periampullary (3) | APC, GS, FPC, BTPS2 | 611731 |
5q21-q22 |
| Adenomas, multiple colorectal, 608456 (3) | MUTYH, MYH | 604933 |
1p34.3-p32.1 |
| Adenomas, salivary gland pleomorphic, 181030 (3) | PLAG1, SGPA, PSA | 603026 |
8q12 |
| Adenomatous polyposis coli, 175100 (3) | APC, GS, FPC, BTPS2 | 611731 |
5q21-q22 |
| Adenosine deaminase deficiency, partial, 102700 (3) | ADA | 608958 |
20q13.11 |
