2027 ICD-10-CM Diagnosis Code S96.212SStrain of intrinsic muscle and tendon at ankle and foot level, left foot, sequela
S96.212S is a billable ICD-10-CM diagnosis code for strain of intrinsic muscle and tendon at ankle and foot level, left foot, 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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 562 through 563. The code is exempt from POA reporting. Coders also document this condition as injury of intrinsic muscle of foot. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S96.212S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Injuries to the ankle and foot (S90-S99).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Injury of intrinsic muscle of foot
- Injury of muscle of left foot
- Strain of intrinsic muscle of foot
- Strain of intrinsic muscle of left foot
- Strain of muscle of left foot
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 2027, published by CMS and the National Center for Health Statistics.
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to S96.212S: its own notes plus those printed at S96, block S90-S99, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify any retained foreign body, if applicable (Z18.-)
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
Notes
General instructions on how these codes are used.
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
7th Character
Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.
- The appropriate 7th character is to be added to each code from category S96
- Ainitial encounter
- Dsubsequent encounter
- Ssequela this code
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name S96.212S, its category, or a range that includes it.
Excludes2 2
These codes carry an Excludes2 note naming S96.212S: its condition is not part of those codes, and both may be reported when the patient has both.
- S86 Injury of muscle, fascia and tendon at lower leg levelinjury of muscle, fascia and tendon at ankle (S96.-) names S96.-, which includes this code
- S93 Dislocation and sprain of joints and ligaments at ankle, foot and toe levelstrain of muscle and tendon of ankle and foot (S96.-) names S96.-, which includes this code
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 S96.212S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S96.212SOverview
Is S96.212S a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report strain of intrinsic muscle and tendon at ankle and foot level, left foot, sequela on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What does the 7th character S in S96.212S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the strain of intrinsic muscle and tendon at ankle and foot level, left foot itself has resolved, not the original event.
What MS-DRG does S96.212S group to?
When strain of intrinsic muscle and tendon at ankle and foot level, left foot, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 563, 562, with relative weights from 0.8982 to 1.3981 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S96.212S 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 intrinsic muscle and tendon at ankle and foot level, left foot, sequela on inpatient claims. The code appears in the Injuries to the ankle and foot (S90-S99) range of the CMS exempt list.
What is the ICD-9 equivalent of S96.212S?
Under the General Equivalence Mappings, strain of intrinsic muscle and tendon at ankle and foot level, left foot, sequela converts to ICD-9-CM 905.7 (late effec sprain/strain). The mapping is approximate, so confirm the match fits the documentation.
