2026 ICD-10-CM Diagnosis Code S01.80XSUnspecified open wound of other part of head, sequela
S01.80XS is a billable ICD-10-CM diagnosis code for unspecified open wound of other part of head, 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 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 604 through 605. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Any dental condition including traumatic injury; and Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S01.80XS is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Avulsion of circumoral region of face
- Avulsion of forehead
- Fracture of alveolus, open
- Fracture of angle of mandible
- Fracture of bone of nasal sinus
- Fracture of frontal bone
- Fracture of frontal sinus
- Fracture of temporal bone
- Glass in face
- Glass in forehead
- Glass in head
- Multiple open fractures of facial bones
- Multiple open wounds of face
- Multiple open wounds of head
- Open dislocation of jaw
- Open division, jaw ligament
- Open fracture of alveolar ridge of left maxilla
- Open fracture of alveolar ridge of maxilla
- Open fracture of alveolar ridge of right maxilla
- Open fracture of body of left half of mandible
- Open fracture of body of mandible
- Open fracture of body of right half of mandible
- Open fracture of condylar process of left mandible
- Open fracture of condylar process of right mandible
- Open fracture of frontal sinus
- Open fracture of left half of mandible
- Open fracture of left mandibular angle
- Open fracture of left maxilla
- Open fracture of mandible, angle of jaw
- Open fracture of mandible, condylar process
- Open fracture of maxilla
- Open fracture of naso orbital ethmoid
- Open fracture of occipital bone
- Open fracture of ramus of left half of mandible
- Open fracture of ramus of mandible
- Open fracture of ramus of right half of mandible
- Open fracture of right half of mandible
- Open fracture of right mandibular angle
- Open fracture of right maxilla
- Open fracture of temporal bone
- Open traumatic bilateral jaw dislocation
- Open wound of chin
- Open wound of face
- Open wound of forehead
- Open wound of jaw
- Open wound of nasal sinus
- Traumatic cerebral edema
- Traumatic cerebral edema with open intracranial wound
- Traumatic dislocation of temporomandibular joint
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Open wound of head (S01). 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.
Patient EducationClinical
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.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S01.80XS to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S01.80XSOverview
Is S01.80XS (Unspecified open wound of other part of head) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified open wound of other part of head, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S01.80XS mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the unspecified open wound of other part of head itself has resolved, not the original event.
What MS-DRG does S01.80XS group to?
When unspecified open wound of other part of head, sequela is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, with relative weights from 0.9160 to 1.4721 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S01.80XS 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 unspecified open wound of other part of head, sequela on inpatient claims.
What is the ICD-9 equivalent of S01.80XS?
Under the General Equivalence Mappings, unspecified open wound of other part of head, sequela converts to ICD-9-CM 906.0 (lt eff opn wnd head/trnk). 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.
