ICD-10-CM Diagnosis Code (2025)
Official Description for N11.1
Chronic obstructive pyelonephritis
Coding Notes & Guidelines for N11.1
Excludes1: Not Coded Here
- calculous pyelonephritis (N20.9)
- obstructive uropathy (N13.-)
Inclusion Terms
- Pyelonephritis (chronic) associated with anomaly of pelviureteric junction
- Pyelonephritis (chronic) associated with anomaly of pyeloureteric junction
- Pyelonephritis (chronic) associated with crossing of vessel
- Pyelonephritis (chronic) associated with kinking of ureter
- Pyelonephritis (chronic) associated with obstruction of ureter
- Pyelonephritis (chronic) associated with stricture of pelviureteric junction
- Pyelonephritis (chronic) associated with stricture of ureter
Parent Code (Less Specific):
About ICD-10-CM Code N11.1 (Chronic obstructive pyelonephritis)
ICD-10-CM code N11.1 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM N11.1 became effective on October 1, 2024.
This page provides detailed information about N11.1 - Chronic obstructive pyelonephritis. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Chronic obstructive pyelonephritis.