2016201720182019202020212022202320242025Billable/Specific Code
- N11.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2024 edition of ICD-10-CM N11.1 became effective on October 1, 2022.
- This is the American ICD-10-CM version of N11.1 – other international versions of ICD-10 N11.1 may differ.
ICD-10-CM N11.1 is grouped within Diagnostic Related Group(s):
Applicable To
- 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
Type 1 Excludes
- calculous pyelonephritis (N20.9)
- obstructive uropathy (N13.-)
Code History
- 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
- 2016 (effective 10/1/2015): No change
- 2017 (effective 10/1/2016): No change
- 2018 (effective 10/1/2017): No change
- 2019 (effective 10/1/2018): No change
- 2020 (effective 10/1/2019): No change
- 2021 (effective 10/1/2020): No change
- 2022 (effective 10/1/2021): No change
- 2023 (effective 10/1/2022): No change
- 2024 (effective 10/1/2023): No change
- 2025 (effective 10/1/2024): No change
Diagnosis Index entries containing back-references to N11.1:
- pyelonephritis (chronic) > with N13.1
- obstructive > chronic (infectious) N11.9
- pyelonephritis (chronic) > Obstruction, obstructed, obstructive
- pyelonephritis (chronic) > with N13.1
- associated with ureteral obstruction or stricture > chronic N11.9
- obstructive > chronic N11.9
- obstruction > in (due to) A23.9
- pyelonephritis (chronic) > with N13.1