Question: How should I report an open cystotomy with removal of a 7-8cm blood clot?
Answer: Report the cystotomy with 51040 (Cystostomy, cystotomy with drainage). However, if there was any stone formation with or within the clot, then code 51050 (Cystolithotomy, cystotomy with removal of calculus, without vesical neck resection). Attach diagnosis code 596.89 (Other specified disorders of bladder) or 594.1, (Other calculus in bladder, urinary bladder stone), if a bladder stone is also found associated with the clot.
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