2026 ICD-10-CM Diagnosis Code S01.531SPuncture wound without foreign body of lip, sequela
S01.531S is a billable ICD-10-CM diagnosis code for puncture wound without foreign body of lip, 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 pellet wound of face. 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
S01.531S is exempt from POA reporting on inpatient claims to general acute care hospitals. Review the other POA exempt codes in Injuries to the head (S00-S09).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Pellet wound of face
- Pellet wound of head
- Pellet wound of lip
- Puncture wound of lip
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
Mouth Disorders
Your mouth is one of the most important parts of your body. It has many different functions. It allows you to:
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Convert S01.531S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S01.531SOverview
What is the ICD-10 code for puncture wound without foreign body of lip, sequela?
The ICD-10-CM code for puncture wound without foreign body of lip, sequela is S01.531S (sometimes written as S01531S). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is S01.531S (Puncture wound without foreign body of lip) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report puncture wound without foreign body of lip, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S01.531S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the puncture wound without foreign body of lip itself has resolved, not the original event.
What MS-DRG does S01.531S group to?
When puncture wound without foreign body of lip, 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 S01.531S 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 without foreign body of lip, sequela on inpatient claims. The code appears in the Injuries to the head (S00-S09) range of the CMS exempt list.
