Malignant neoplasm of posterior wall of bladder

This code signifies a primary cancerous tumor originating in the posterior wall of the urinary bladder. This malignancy is characterized by uncontrolled cell growth and has the potential to invade surrounding tissues or metastasize to distant sites.

Apply this code when documentation explicitly identifies a primary malignant neoplasm located specifically on the posterior wall of the bladder. This diagnosis is typically confirmed through biopsy and imaging studies.

• Ensure the documentation specifies "posterior wall" to differentiate from other bladder sites.
• Do not use for secondary or metastatic bladder cancer; use appropriate secondary malignancy codes.
• Sequence this code as the primary diagnosis when it is the reason for the encounter, unless treatment is for a complication of the neoplasm.