2026 ICD-10-CM Diagnosis Code S31.44XAPuncture wound with foreign body of vagina and vulva, initial encounter

ICD-10-CM Codes›S00–T88›S30-S39›S31

ICD-10-CM S31.44XA
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S31.44XA is a billable ICD-10-CM diagnosis code for puncture wound with foreign body of vagina and vulva, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 742 through 743, 760 through 761, 963 through 965. Coders also document this condition as fishing hook in perineum. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Open wounds of trunk, initial encounter.

Code Identity

ICD-10-CM Code
S31.44XA
Billable Status
Yes — Valid for Submission
Code Describes
Puncture wound with foreign body of vagina and vulva, initial encounter
Short Description
Puncture wound w foreign body of vagina and vulva, init
Parent Code
S31.44
Puncture wound with foreign body of vagina and vulva

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS30-S39Injuries to the abdomen, lower back, lumbar spine, pelvis and external genitals
CategoryS31Open wound of abdomen, lower back, pelvis and external genitals
This CodeS31.44XAPuncture wound with foreign body of vagina and vulva, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Fishing hook in perineum
  • Fishing hook in trunk

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Open wound of abdomen, lower back, pelvis and external genitals (S31). 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.

CCSR INJ013
Open wounds of trunk, initial encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Vaginal Diseases

Vaginal problems are some of the most common reasons women go to the doctor. They may have symptoms such as:

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert S31.44XA to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
878.5 Open wound vulva-compl
Approximate The match is approximate rather than exact.
ICD-9-CM
878.7 Open wound vagina-compl
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About S31.44XAOverview

Is S31.44XA (Puncture wound with foreign body of vagina and vulva) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report puncture wound with foreign body of vagina and vulva, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character A in S31.44XA mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for puncture wound with foreign body of vagina and vulva, such as an emergency visit or first evaluation.

What MS-DRG does S31.44XA group to?

When puncture wound with foreign body of vagina and vulva, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 742, 743, 760, 761, 963, 964, 965, with relative weights from 0.5696 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S31.44XA?

Under the General Equivalence Mappings, puncture wound with foreign body of vagina and vulva, initial encounter converts to ICD-9-CM 878.5 (open wound vulva-compl) and 878.7 (open wound vagina-compl). 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.