ICD-10-CM Code S01.409S

Unspecified open wound of unspecified cheek and temporomandibular area, sequela

Version 2020 Billable Code POA Exempt

Valid for Submission

S01.409S is a billable code used to specify a medical diagnosis of unspecified open wound of unspecified cheek and temporomandibular area, sequela. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code S01.409S might also be used to specify conditions or terms like avulsion of maxilla, fracture of angle of mandible, fracture of coronoid process of mandible, fracture of malar or maxillary bones, open, fracture of subcondylar process of mandible, fracture of zygomatic process, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

Short Description:Unsp open wound of unsp cheek and TMJ area, sequela
Long Description:Unspecified open wound of unspecified cheek and temporomandibular area, sequela


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Avulsion of maxilla
  • Fracture of angle of mandible
  • Fracture of coronoid process of mandible
  • Fracture of malar or maxillary bones, open
  • Fracture of subcondylar process of mandible
  • Fracture of zygomatic process
  • Glass in cheek
  • Glass in face
  • Glass in head
  • Open dislocation of jaw
  • Open division, jaw ligament
  • Open division, temporomandibular ligament
  • Open fracture of mandible, angle of jaw
  • Open fracture of mandible, condylar process
  • Open fracture of mandible, coronoid process
  • Open fracture of mandible, subcondylar
  • Open fracture of ramus of mandible
  • Open fracture of zygoma
  • Open fracture of zygomatic arch
  • Open fracture of zygomatic tripod
  • Open subluxation jaw
  • Open wound of cheek
  • Open wound of cheek with complication
  • Open wound of cheek without complication
  • Open wound of jaw without complication
  • Temporomandibular subluxation
  • Traumatic dislocation of temporomandibular joint

Diagnostic Related Groups

The ICD-10 code S01.409S is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Present on Admission (POA)

S01.409S is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here .

CMS POA Indicator Options and Definitions
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert S01.409S to ICD-9

  • 906.0 - Lt eff opn wnd head/trnk (Approximate Flag)

Code Classification

  • Injury, poisoning and certain other consequences of external causes (S00–T98)
    • Injuries to the head (S00-S09)
      • Open wound of head (S01)

Code History

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

Information for Patients

Facial Injuries and Disorders

Face injuries and disorders can cause pain and affect how you look. In severe cases, they can affect sight, speech, breathing and your ability to swallow. Broken bones, especially the bones of your nose, cheekbone and jaw, are common facial injuries.

Certain diseases also lead to facial disorders. For example, nerve diseases like trigeminal neuralgia or Bell's palsy sometimes cause facial pain, spasms and trouble with eye or facial movement. Birth defects can also affect the face. They can cause underdeveloped or unusually prominent facial features or a lack of facial expression. Cleft lip and palate are a common facial birth defect.

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Wounds and Injuries

An injury is damage to your body. It is a general term that refers to harm caused by accidents, falls, hits, weapons, and more. In the U.S., millions of people injure themselves every year. These injuries range from minor to life-threatening. Injuries can happen at work or play, indoors or outdoors, driving a car, or walking across the street.

Wounds are injuries that break the skin or other body tissues. They include cuts, scrapes, scratches, and punctured skin. They often happen because of an accident, but surgery, sutures, and stitches also cause wounds. Minor wounds usually aren't serious, but it is important to clean them. Serious and infected wounds may require first aid followed by a visit to your doctor. You should also seek attention if the wound is deep, you cannot close it yourself, you cannot stop the bleeding or get the dirt out, or it does not heal.

Other common types of injuries include

  • Animal bites
  • Bruises
  • Burns
  • Dislocations
  • Electrical injuries
  • Fractures
  • Sprains and strains

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