2027 ICD-10-CM Diagnosis Code T79.6XXSTraumatic ischemia of muscle, sequela
T79.6XXS is a billable ICD-10-CM diagnosis code for traumatic ischemia of muscle, 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 913 through 914. The code is exempt from POA reporting. Coders also document this condition as anterior tibial stress syndrome. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
T79.6XXS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Certain early complications of trauma (T79).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Anterior tibial stress syndrome
- Compartment syndrome of forearm
- Compartment syndrome of upper limb due to traumatic injury
- Deformity after injury
- Ischemia of muscle due to traumatic injury
- Tibial stress syndrome
- Traumatic rhabdomyolysis
- Volkmann contracture
- Volkmann ischemic contracture following traumatic compartment syndrome
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Certain early complications of trauma, not elsewhere classified (T79). 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 T79.6XXS: its own notes plus those printed at T79.6, T79, 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.-)
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 T79
- 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 T79.6XXS, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming T79.6XXS: they are not reported together with it, unless the two conditions are unrelated.
- M62.2 Nontraumatic ischemic infarction of muscletraumatic ischemia of muscle (T79.6) names T79.6, which includes this code
- M62.2 Nontraumatic ischemic infarction of muscleVolkmann's ischemic contracture (T79.6) names T79.6, which includes this code
- M62.82 Rhabdomyolysistraumatic rhabdomyolysis (T79.6) names T79.6, which includes this code
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Muscle Disorders
Your muscles help you move and help your body work. Different types of muscles have different jobs. There are many problems that can affect muscles. Muscle disorders can cause weakness, pain or even paralysis.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert T79.6XXS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About T79.6XXSOverview
What is the ICD-10 code for traumatic ischemia of muscle, sequela?
The ICD-10-CM code for traumatic ischemia of muscle, sequela is T79.6XXS (sometimes written as T796XXS). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is T79.6XXS (Traumatic ischemia of muscle) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report traumatic ischemia of muscle, sequela on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What does the 7th character S in T79.6XXS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the traumatic ischemia of muscle itself has resolved, not the original event.
What MS-DRG does T79.6XXS group to?
When traumatic ischemia of muscle, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 914, 913, with relative weights from 0.9281 to 1.5448 depending on complications. Higher weights mean higher Medicare reimbursement.
Is T79.6XXS 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 traumatic ischemia of muscle, sequela on inpatient claims. The code appears in the Certain early complications of trauma (T79) range of the CMS exempt list.
