Chronic interstitial cystitis

This code signifies a persistent, non-infectious inflammatory condition of the bladder wall, characterized by chronic pelvic pain, urinary frequency, and urgency. It represents a long-standing inflammation of the interstitial tissue of the bladder, distinct from bacterial cystitis.

Apply this code when documentation clearly indicates a diagnosis of chronic interstitial cystitis, often supported by cystoscopy findings, bladder biopsy, and exclusion of other causes of bladder inflammation. It is appropriate for patients experiencing ongoing symptoms consistent with this chronic bladder pain syndrome.

• Ensure documentation specifies "chronic" to differentiate from acute or unspecified cystitis.
• Do not use for infectious cystitis; those conditions have specific bacterial or other organism codes.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis when managing complications or related conditions.