2026 ICD-10-CM Diagnosis Code S93.135SSubluxation of interphalangeal joint of left lesser toe(s), sequela

ICD-10-CM Codes›S00–T88›S90-S99›S93

ICD-10-CM S93.135S
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S93.135S is a billable ICD-10-CM diagnosis code for subluxation of interphalangeal joint of left lesser toe(s), 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 subluxation of interphalangeal joint of lesser toe. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.

Code Identity

ICD-10-CM Code
S93.135S
Billable Status
Yes — Valid for Submission
Code Describes
Subluxation of interphalangeal joint of left lesser toe(s), sequela
Short Description
Sublux of interphaln joint of left lesser toe(s), sequela
Parent Code
S93.135
Subluxation of interphalangeal joint of left lesser toe(s)

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS90-S99Injuries to the ankle and foot
CategoryS93Dislocation and sprain of joints and ligaments at ankle, foot and toe level
This CodeS93.135SSubluxation of interphalangeal joint of left lesser toe(s), sequela

Present on Admission (POA)Billing

S93.135S 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.

  • Subluxation of interphalangeal joint of lesser toe
  • Subluxation of interphalangeal joint of lesser toe of left foot
  • Subluxation of joint of left foot
  • Subluxation of joint of toe of left 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.

CCSR INJ073
Injury, sequela
Default principal diagnosis: inpatient Yes · outpatient Yes

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.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S93.135S to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
905.6 Late effect dislocation
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S93.135SOverview

Is S93.135S (Subluxation of interphalangeal joint of left lesser toe(s)) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report subluxation of interphalangeal joint of left lesser toe(s), sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character S in S93.135S mean?

The final character S makes this a sequela code: it reports a lingering problem that remains after the subluxation of interphalangeal joint of left lesser toe(s) itself has resolved, not the original event.

What MS-DRG does S93.135S group to?

When subluxation of interphalangeal joint of left lesser toe(s), 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 S93.135S 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 subluxation of interphalangeal joint of left lesser toe(s), sequela on inpatient claims.

What is the ICD-9 equivalent of S93.135S?

Under the General Equivalence Mappings, subluxation of interphalangeal joint of left lesser toe(s), sequela converts to ICD-9-CM 905.6 (late effect dislocation). 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.