2021 ICD-10-CM Code S09.1

Injury of muscle and tendon of head

Version 2021
Non-Billable Code

Not Valid for Submission

S09.1 is a "header" nonspecific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of injury of muscle and tendon of head. The code is NOT valid for the year 2021 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

ICD-10:S09.1
Short Description:Injury of muscle and tendon of head
Long Description:Injury of muscle and tendon of head

Code Classification

Specific Coding for Injury of muscle and tendon of head

Header codes like S09.1 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for injury of muscle and tendon of head:

  • S09.10 - Unspecified injury of muscle and tendon of head
  • S09.10XA - Unspecified injury of muscle and tendon of head, initial encounter
  • S09.10XD - Unspecified injury of muscle and tendon of head, subsequent encounter
  • S09.10XS - Unspecified injury of muscle and tendon of head, sequela
  • S09.11 - Strain of muscle and tendon of head
  • S09.11XA - Strain of muscle and tendon of head, initial encounter
  • S09.11XD - Strain of muscle and tendon of head, subsequent encounter
  • S09.11XS - Strain of muscle and tendon of head, sequela
  • S09.12 - Laceration of muscle and tendon of head
  • S09.12XA - Laceration of muscle and tendon of head, initial encounter
  • S09.12XD - Laceration of muscle and tendon of head, subsequent encounter
  • S09.12XS - Laceration of muscle and tendon of head, sequela
  • S09.19 - Other specified injury of muscle and tendon of head
  • S09.19XA - Other specified injury of muscle and tendon of head, initial encounter
  • S09.19XD - Other specified injury of muscle and tendon of head, subsequent encounter
  • S09.19XS - Other specified injury of muscle and tendon of head, sequela

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code S09.1:


Code Also

Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.

Type 2 Excludes

Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.

Information for Patients


Head Injuries

Also called: Cranial injuries, Skull fractures, Skull injuries

Chances are you've bumped your head before. Often, the injury is minor because your skull is hard and it protects your brain. But other head injuries can be more severe, such as a skull fracture, concussion, or traumatic brain injury.

Head injuries can be open or closed. A closed injury does not break through the skull. With an open, or penetrating, injury, an object pierces the skull and enters the brain. Closed injuries are not always less severe than open injuries.

Some common causes of head injuries are falls, motor vehicle accidents, violence, and sports injuries.

It is important to know the warning signs of a moderate or severe head injury. Get help immediately if the injured person has

Doctors use a neurologic exam and imaging tests to make a diagnosis. Treatment depends on the type of injury and how severe it is.

NIH: National Institute of Neurological Disorders and Stroke


[Learn More in MedlinePlus]

Muscle Disorders

Also called: Myopathy

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.

Causes of muscle disorders include

Sometimes the cause is not known.


[Learn More in MedlinePlus]

Code History

  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)