2026 ICD-10-CM Diagnosis Code S93.304AUnspecified dislocation of right foot, initial encounter
S93.304A is a billable ICD-10-CM diagnosis code for unspecified dislocation of right foot, 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 562 through 563, 963 through 965. Coders also document this condition as closed traumatic dislocation of joint of right foot. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Dislocations, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Closed traumatic dislocation of joint of right foot
- Dislocation of joint of bilateral feet due to congenital dysplasia of joint of bilateral feet
- Dislocation of joint of foot due to congenital dysplasia of joint of foot
- Dislocation of joint of left foot due to congenital dysplasia of joint of left foot
- Dislocation of joint of right foot due to congenital dysplasia of joint of right foot
- Open traumatic dislocation of joint of right foot
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Dislocation and sprain of joints and ligaments at ankle, foot and toe level (S93). 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 S93.304A to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S93.304AOverview
Is S93.304A (Unspecified dislocation of right foot) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified dislocation of right foot, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S93.304A mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for unspecified dislocation of right foot, such as an emergency visit or first evaluation.
What MS-DRG does S93.304A group to?
When unspecified dislocation of right foot, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 562, 563, 963, 964, 965, with relative weights from 0.8955 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of S93.304A?
Under the General Equivalence Mappings, unspecified dislocation of right foot, initial encounter converts to ICD-9-CM 838.00 (dislocat foot NOS-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.
