| Abbreviation | Definition |
|---|---|
| HIT | Hibernation Inducing Trigger |
| HIT | Hormone Induction Therapy |
| HITM | Hepatitis Integration Training Manual |
| HIVG | Human Immunodeficiency Virus Gum problems |
| HIVP | Human Immunodeficiency Virus Periodontitis |
| H-J | HepatoJugular |
| HJR | HepatoJugular Reflux |
| HKAFO | Hip-Knee-Ankle-Foot Orthoses |
| HL | Hair Loss |
| HL | Haliaetus Leucocephalus |
| HL | Head Lice |
| HL | Hearing Level |
| HL | Hearing Loss |
| HL | Heart and Lungs |
| HL | Hepatic Lipase |
| HL | Hepatic Lipidosis |
| HLA | Heart, Lungs, Abdomen |
| HLA | human leucocyte antigen |
| HLB | Hydrophyllic Lipophyllic Balance |
| HLBF | Hamstring/Low-Back Flexibility |