2026 ICD-10-CM Diagnosis Code S37.12XSContusion of ureter, sequela
S37.12XS is a billable ICD-10-CM diagnosis code for contusion of ureter, sequela. The 7th character S marks it as a sequela code, which reports a problem that remains after the original condition has resolved. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 729 through 730, 742 through 743, 760 through 761. The code is exempt from POA reporting. Coders also document this condition as contusion of ureter. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S37.12XS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Contusion 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 S37.12XS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S37.12XSOverview
Is S37.12XS (Contusion of ureter) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report contusion of ureter, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S37.12XS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the contusion of ureter itself has resolved, not the original event.
What MS-DRG does S37.12XS group to?
When contusion of ureter, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 729, 730, 742, 743, 760, 761, with relative weights from 0.5696 to 1.8348 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S37.12XS exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for contusion of ureter, sequela on inpatient claims.
What is the ICD-9 equivalent of S37.12XS?
Under the General Equivalence Mappings, contusion of ureter, sequela converts to ICD-9-CM 908.2 (late eff int injury NEC). 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.
