2026 ICD-10-CM Diagnosis Code S96.011DStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter

ICD-10-CM Codes›S00–T88›S90-S99›S96

ICD-10-CM S96.011D
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S96.011D is a billable ICD-10-CM diagnosis code for strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, 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 Sprains and strains, subsequent encounter.

Code Identity

ICD-10-CM Code
S96.011D
Billable Status
Yes — Valid for Submission
Code Describes
Strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter
Short Description
Strain msl/tnd lng flxr msl toe at ank/ft lev, r foot, subs
Parent Code
S96.011
Strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS90-S99Injuries to the ankle and foot
CategoryS96Injury of muscle and tendon at ankle and foot level
This CodeS96.011DStrain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter

Present on Admission (POA)Billing

S96.011D 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 Injury of muscle and tendon at ankle and foot level (S96). 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 INJ061
Sprains and strains, subsequent encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Foot Injuries and Disorders

Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:

Read the full article at MedlinePlus

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

Convert S96.011D to ICD-9-CMHistory

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

ICD-9-CM
V58.89 Other specfied aftercare
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 S96.011DOverview

Is S96.011D a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character D in S96.011D mean?

The final character D marks a subsequent encounter: use it for routine care while the strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot is healing, after active treatment has ended.

What MS-DRG does S96.011D group to?

When strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, 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 S96.011D 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 strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, subsequent encounter on inpatient claims.

What is the ICD-9 equivalent of S96.011D?

Under the General Equivalence Mappings, strain of muscle and tendon of long flexor muscle of toe at ankle and foot level, right foot, 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.