2026 ICD-10-CM Diagnosis Code S91.319SLaceration without foreign body, unspecified foot, sequela
S91.319S is a billable ICD-10-CM diagnosis code for laceration without foreign body, unspecified foot, 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 Injury, sequela.
Code Identity
Code Classification
Present on Admission (POA)Billing
S91.319S 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.
- Cut of dorsum of foot
- Cut of foot
- Cut of heel
- Cut of sole of foot
- Deep laceration of foot
- Deep laceration of lower limb
- Laceration of dorsum of foot
- Laceration of foot
- Laceration of foot without foreign body
- Laceration of heel
- Laceration of sole of foot
- Open wound foot, plantar
- Stab wound of dorsum of foot
- Stab wound of foot
- Stab wound of heel
- Stab wound of sole of foot
- Superficial laceration of foot
- Superficial laceration of lower limb
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Open wound of ankle, foot and toes (S91). 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
Foot Injuries and Disorders
Each of your feet has 26 bones, 33 joints, and more than 100 tendons, muscles, and ligaments. No wonder a lot of things can go wrong. Here are a few common problems:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S91.319S to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S91.319SOverview
Is S91.319S (Laceration without foreign body, unspecified foot) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report laceration without foreign body, unspecified foot, sequela on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character S in S91.319S mean?
The final character S makes this a sequela code: it reports a lingering problem that remains after the laceration without foreign body, unspecified foot itself has resolved, not the original event.
What MS-DRG does S91.319S group to?
When laceration without foreign body, unspecified foot, 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 S91.319S 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 laceration without foreign body, unspecified foot, sequela on inpatient claims.
What is the ICD-9 equivalent of S91.319S?
Under the General Equivalence Mappings, laceration without foreign body, unspecified foot, sequela converts to ICD-9-CM 906.1 (late eff open wnd extrem). 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.
