| HBAg | hepatitis B antigen |
|---|---|
| HBB | hemoglobin beta-chain; hospital blood bank; hydroxybenzyl benzimidazole |
| HbBC | hemoglobin binding capacity |
| HBBW | hold breakfast blood work |
| HBC | hereditary breast cancer |
| HbC | hemoglobin C |
| HBc, HBC, | HBc hepatitis B core [antigen] |
| HBcAg, HBcAg, | HBCAG hepatitis B core antigen |
| HBCG | heat-aggregated Calmette-Guerin bacillus |
| HbCO | carboxyhemoglobin |