2026 ICD-10-CM Diagnosis Code S53.30XSTraumatic rupture of unspecified ulnar collateral ligament, sequela
S53.30XS is a billable ICD-10-CM diagnosis code for traumatic rupture of unspecified ulnar collateral ligament, 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 562 through 563. The code is exempt from POA reporting. Coders also document this condition as complete tear ulnar collateral ligament. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S53.30XS 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.
- Complete tear ulnar collateral ligament
- Complete tear, elbow joint
- Rupture of elbow ligament
- Rupture of ulnar collateral ligament of thumb
- Traumatic rupture of ulnar collateral ligament of elbow
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Dislocation and sprain of joints and ligaments of elbow (S53). 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
Elbow Injuries and Disorders
Your elbow joint is made up of bone, cartilage, ligaments and fluid. Muscles and tendons help the elbow joint move. When any of these structures is hurt or diseased, you have elbow problems.
Read the full article at MedlinePlus
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Convert S53.30XS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S53.30XSOverview
Is S53.30XS (Traumatic rupture of unspecified ulnar collateral ligament) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report traumatic rupture of unspecified ulnar collateral ligament, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S53.30XS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the traumatic rupture of unspecified ulnar collateral ligament itself has resolved, not the original event.
What MS-DRG does S53.30XS group to?
When traumatic rupture of unspecified ulnar collateral ligament, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 562, 563, with relative weights from 0.8955 to 1.4248 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S53.30XS 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 traumatic rupture of unspecified ulnar collateral ligament, sequela on inpatient claims.
What is the ICD-9 equivalent of S53.30XS?
Under the General Equivalence Mappings, traumatic rupture of unspecified ulnar collateral ligament, sequela converts to ICD-9-CM 905.7 (late effec sprain/strain). 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.
