2026 ICD-10-CM Diagnosis Code S01.449SPuncture wound with foreign body of unspecified cheek and temporomandibular area, sequela
S01.449S is a billable ICD-10-CM diagnosis code for puncture wound with foreign body of unspecified cheek and temporomandibular area, 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. Coders also document this condition as fishing hook in cheek. 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
S01.449S 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.
- Fishing hook in cheek
- Fishing hook in face
- Fishing hook in head
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
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. Fractures (broken bones), especially in the bones of your nose, cheekbone and jaw, are common facial injuries.
Read the full article at MedlinePlus
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Convert S01.449S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S01.449SOverview
Is S01.449S a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report puncture wound with foreign body of unspecified cheek and temporomandibular area, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S01.449S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the puncture wound with foreign body of unspecified cheek and temporomandibular area itself has resolved, not the original event.
What MS-DRG does S01.449S group to?
When puncture wound with foreign body of unspecified cheek and temporomandibular area, 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 S01.449S 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 puncture wound with foreign body of unspecified cheek and temporomandibular area, sequela on inpatient claims.
What is the ICD-9 equivalent of S01.449S?
Under the General Equivalence Mappings, puncture wound with foreign body of unspecified cheek and temporomandibular area, 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.
