Unspecified renal colic (N23) ICD-10-CM
The N23 code range covers unspecified renal colic with 1 ICD-10-CM diagnosis codes. 1 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the N23 Range 1 codes · 1 billable
- N23 Unspecified renal colic
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the N23 range.
Renal Colic
A severe intermittent and spasmodic pain in the lower back radiating to the groin, scrotum, and labia which is most commonly caused by a kidney stone (RENAL CALCULUS) passing through the URETER or by other urinary track blockage. It is often associated with nausea, vomiting, fever, restlessness, dull pain, frequent urination, and HEMATURIA.
About the N23 Code Range
The ICD-10 code N23 is used to classify cases of unspecified renal colic, a sudden and severe pain arising from the kidney or ureter. This code applies when the exact cause or location of the kidney-related pain is not specified.
Unspecified renal colic often presents as sharp pain in the kidney area, commonly referred to by various terms such as renal angle pain, ureteric colic, renal pain, or ureteric pain. These synonyms help identify the condition and aid coders in choosing N23 when the documentation lacks detail about the precise cause. This code covers situations where a patient experiences urinary tract or kidney tenderness without a confirmed diagnosis of stones or other specific disorders. For medical coders and healthcare workers, using the ICD-10 code for unspecified renal colic ensures proper record-keeping for kidney pain cases where no other identifiable pathology has been documented.
Questions About This Page
How many billable codes are in the N23 range?
Of the 1 codes in this range, 1 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the N23 range classify?
The range classifies unspecified renal colic. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
