What Is the ICD-9 Code for a Bladder Mass?


Quick Answer

The ICD-9-CM code for primary malignant bladder cancer is 188. ICD-9-CM 596.9 is the billing code that doctors use to indicate bladder cancer on a reimbursement claim.

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Insurers use more specific ICD-9-CM codes to indicate the location of a bladder tumor. For instance, the ICD-9-CM code 188.1 indicates bladder cancer in the dome of the urinary bladder, while 188.2 denotes bladder cancer in the lateral wall. Code 188.3 indicates cancer in the anterior wall of the bladder, and 188.4 indicates its presence in the posterior bladder wall. Code 188.5 indicates bladder cancer in the bladder neck, while 188.6 indicates its presence in the uretic orifice. The code for various other bladder cancers is 188.8, and the code for bladder in an unspecified site is 188.9.

Most bladder cancers begin in the bladder lining and invade the bladder walls as they grow. Doctors determine the treatment and prognosis for these cancers based in part on the type of cell involved. For example, transitional cell carcinoma, the most common type of bladder cancer, arises from the urothelial cells that line the bladder and most of the urinary tract. Squamous cell carcinoma, a much rarer type of bladder cancer, arises from cells that look much like skin cells, while adenocarcinoma starts in cells that make and release mucus and other fluids.

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