2026 ICD-10-CM Diagnosis Code S37.13XALaceration of ureter, initial encounter
S37.13XA is a billable ICD-10-CM diagnosis code for laceration of ureter, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 698 through 700, 963 through 965. Coders also document this condition as cut of ureter. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Internal organ injury, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cut of ureter
- Injury of left ureter
- Injury of right ureter
- Laceration of left ureter
- Laceration of right ureter
- Laceration of ureter
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of urinary and pelvic organs (S37). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026, published by CMS and the National Center for Health Statistics.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Ureteral Disorders
Your kidneys make urine by filtering wastes and extra water from your blood. The urine travels from the kidneys to the bladder in two thin tubes called ureters.
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Convert S37.13XA to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S37.13XAOverview
Is S37.13XA (Laceration of ureter) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report laceration of ureter, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S37.13XA mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for laceration of ureter, such as an emergency visit or first evaluation.
What MS-DRG does S37.13XA group to?
When laceration of ureter, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 698, 699, 700, 963, 964, 965, with relative weights from 0.6899 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of S37.13XA?
Under the General Equivalence Mappings, laceration of ureter, initial encounter converts to ICD-9-CM 867.2 (ureter injury-closed). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
