The OSH medical abbreviation means outside hospital, any hospital other than the one where the note is being written. It appears most in transfer and admission notes, where doctors record what happened before the patient arrived, such as CT at OSH showed a small bleed.
Less often, OSH stands for occupational safety and health, the field that protects workers from injury and illness on the job. In patient charts, though, outside hospital is by far the usual meaning. Below are sample lines, related shorthand and tips for patients who move between hospitals.
At a glance
Stands for
Outside hospitalOther meanings
Occupational safety and healthWhere you see it
Transfer notes, ED notes, admission H&PWritten as
OSH, sometimes OH or outside facilityTypical pairings
Imaging, labs and treatment done at OSHSpecialty
Emergency medicine, ICU, surgery, transfer centers
What outside hospital means in a note
Many patients start care at one hospital and are moved to another, often a larger center with specialists, a cardiac cath lab or a trauma team. When the receiving team writes its notes, it needs a quick way to separate what it found from what the first hospital found. OSH does that job.
So troponin elevated at OSH means the first hospital's blood test showed a raised heart marker, and repeat troponin here means the second hospital checked it again. OSH does not name the hospital, which keeps the note short; the full name usually appears in the transfer paperwork.
Decoding OSH medical abbreviation lines
| Phrase | Meaning |
|---|---|
| Transferred from OSH | Patient came from another hospital |
| CT head at OSH negative | A head scan at the first hospital showed nothing acute |
| OSH records reviewed | The team read the first hospital's notes and results |
| Images pushed from OSH | Scans were sent electronically for review |
| s/p tPA at OSH | A clot dissolving drug was given before transfer |
ICU admission note: "Presented to OSH with chest pain, EKG concerning for STEMI, transferred for cath." The patient first went to another hospital, where a heart tracing suggested a major heart attack, and was moved for a catheter procedure.
Why outside records matter
Each test done before transfer gives the new team a starting point. Knowing what scans showed, what medicines were given and when, and how the patient responded helps avoid repeating tests and helps catch changes. That is why transfer centers often ask for images, lab results and a summary to travel with the patient.
Gaps happen. Records may arrive late, images may not load, or handwritten notes may be hard to read. Receiving teams often write OSH records pending until everything is in hand.
Tips for patients moving between hospitals
- Bring or ask for a copy of discharge papers, medicine lists and imaging discs if you are moved or seen in more than one place.
- Tell the new team which medicines you received before transfer, if you know.
- Ask whether the outside scans and results arrived.
- Keep your own list of hospitals and dates, which helps future clinicians.
OSH is explained here as general chart language. For anything about your own transfer or records, ask the care team or the records office at either hospital.
Frequently asked questions
What does OSH mean in a medical chart?
OSH means outside hospital, a hospital other than the one writing the note. It is common in transfer and admission notes.
Why do notes say OSH instead of the hospital name?
It keeps the note short and makes clear which findings came from before transfer. The hospital's full name is usually in the transfer paperwork or records section.
What does transferred from OSH mean?
It means the patient was first seen or admitted at another hospital and then moved, often for specialist care or a procedure not available there.
Does OSH ever mean occupational safety?
Yes. In workplace and employee health contexts OSH can mean occupational safety and health. In patient charts it almost always means outside hospital.
Will my new hospital get my outside hospital records?
Usually the two hospitals share records during a transfer, but delays happen. It is reasonable to ask the new team whether your outside scans and results have arrived.