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Anesthesia Coding Alert

Reader Questions: Code With +99135 for Controlled Hypotension

- Published on Mon, May 02, 2011


One of the anesthesiologists we code for wants to bill for controlled hypotension on shoulder and knee procedures. How do we do this?

Michigan Subscriber


Some anesthesiologists do administer controlled hypotension during certain procedures at the surgeon's request. You should code with +99135 (Anesthesia complicated by utilization of controlled hypotension [List separately in addition to code for primary anesthesia procedure]). Be sure to include the correct anesthesia code representing the surgery itself because +99135 is an add-on code. The anesthesiologist should document in the anesthesia record that the hypotension was at the surgeon's request.

Payment: Some payers won't increase the anesthesiologist's reimbursement because of hypotension unless you specify it up front. Consider negotiating for a higher dollar amount in your contracts and include documentation of the agreement with your claim.

Definition: When a chart mentions controlled hypotension, the anesthesiologist closely monitored the patient's blood pressure while it dropped drastically and [...]

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