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What Is an Indemnification Clause and How Does It Affect Your Lab Insurance Program?
Lab contracts shift liability through indemnification clauses. Signing one and having a policy that covers it are different things, and many forms sub-limit it.
3 min read · Clinical Labs · May 25, 2026
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An indemnification clause is the part of a contract where one party agrees to cover the other’s losses arising from defined events. Lab service agreements with hospitals, health systems, and reference lab partners are full of them, and most lab directors sign without checking whether their insurance program actually covers what they just agreed to assume. Signing an indemnification obligation and having a policy that responds to it are two different things, because contractual liability is a specific provision that many professional liability forms sub-limit or exclude.
What an Indemnification Clause Does
In an indemnification, or hold-harmless, clause, the lab promises to protect the other party against certain claims, costs, or losses connected to the lab’s work. A hospital contracting with a lab will commonly require the lab to indemnify it for claims arising from the lab’s testing. That is a contractual assumption of liability: the lab is taking on, by agreement, an obligation it might not have had under ordinary law. The clause can be narrow, limited to the lab’s own negligence, or broad, sweeping in losses the lab did not directly cause. The breadth of the language determines how much risk the lab just accepted.
The signature does not, by itself, fund the obligation. When a claim triggers the indemnity, the lab needs a policy that responds to a liability assumed under contract. That is where the gap opens.
Why the Policy May Not Follow the Signature
Liability policies are built primarily to cover the insured’s own liability, not liabilities the insured voluntarily assumes for someone else. Coverage for assumed obligations is contractual liability coverage, and it is a specific grant. Many professional liability forms limit it, sub-limit it, or exclude broad-form contractual liability altogether, on the theory that the insurer did not price for whatever obligations the insured might sign up for. So a lab can agree to a broad indemnification in a hospital contract and then find its E&O policy responds only to the part that reflects the lab’s own negligence, leaving the assumed-beyond-negligence portion uncovered.
This is the same “the document says one thing, the policy does another” gap that runs through lab contracting, the same mechanics behind additional insured status that the policy has to actually provide. The contract and the policy have to be read together, not signed separately.
How the Two Interact in a Lab Program
For a lab, the indemnification question sits on top of the professional liability coverage that answers a testing error. The clause does not change what the lab did; it changes who bears the loss when something goes wrong, and whether the lab’s policy will stand behind that reallocation. A reference relationship is a common place this bites, because the referring lab often indemnifies, and is indemnified by, the reference lab, and the residual exposure a referring lab keeps interacts directly with those clauses. The way these contractual obligations fit into the overall program is part of what insurance a CLIA-certified lab needs.
The practical risk is asymmetry: the lab signs broad indemnities out, but its policy only covers a slice, and meanwhile the counterparties it relies on may have indemnified the lab with language their policies do not fully back either. Reading both directions is the work.
What to Do Now
Before signing a lab service agreement, send the indemnification clause to your broker and confirm your professional liability policy’s contractual liability provision actually covers what you are agreeing to assume, and at what limit. Watch for broad-form indemnities that reach beyond your own negligence, because those are the ones forms most often exclude. Where a clause is broader than your coverage, the options are to narrow the clause in negotiation or to arrange coverage that matches it. Keep a record of which contracts contain which indemnities, because as the lab takes on more hospital and reference relationships, the assumed obligations accumulate.
Before your next contract, confirm the indemnification you are signing is one your policy will actually stand behind. A specialty review through Tower Street Insurance can map your lab’s contractual liability obligations to what your program actually covers.
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