2026 ICD-10-CM Diagnosis Code S53.135DMedial dislocation of left ulnohumeral joint, subsequent encounter
S53.135D is a billable ICD-10-CM diagnosis code for medial dislocation of left ulnohumeral joint, subsequent encounter. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 949 through 950. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Dislocations, subsequent encounter.
Code Identity
Code Classification
Present on Admission (POA)Billing
S53.135D is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
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
Dislocations
Dislocations are joint injuries that force the ends of your bones out of position. The cause is often a fall or a blow, sometimes from playing a contact sport. You can dislocate your ankles, knees, shoulders, hips, elbows and jaw. You can also dislocate your finger and toe joints.
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Convert S53.135D to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S53.135DOverview
Is S53.135D (Medial dislocation of left ulnohumeral joint) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report medial dislocation of left ulnohumeral joint, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character D in S53.135D mean?
The final character D marks a subsequent encounter: use it for routine care while the medial dislocation of left ulnohumeral joint is healing, after active treatment has ended.
What MS-DRG does S53.135D group to?
When medial dislocation of left ulnohumeral joint, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 949, 950, with relative weights from 0.6277 to 1.1897 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S53.135D 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 medial dislocation of left ulnohumeral joint, subsequent encounter on inpatient claims.
What is the ICD-9 equivalent of S53.135D?
Under the General Equivalence Mappings, medial dislocation of left ulnohumeral joint, subsequent encounter converts to ICD-9-CM V58.89 (other specfied aftercare). 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.
