2026 ICD-10-CM Diagnosis Code S71.109DUnspecified open wound, unspecified thigh, subsequent encounter

ICD-10-CM Codes›S00–T88›S70-S79›S71

ICD-10-CM S71.109D
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S71.109D is a billable ICD-10-CM diagnosis code for unspecified open wound, unspecified thigh, subsequent encounter. The 7th character D marks it as a subsequent encounter code, used during routine care in the healing or recovery phase. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 949 through 950. The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Open wounds to limbs, subsequent encounter.

Code Identity

ICD-10-CM Code
S71.109D
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified open wound, unspecified thigh, subsequent encounter
Short Description
Unspecified open wound, unspecified thigh, subs encntr
Parent Code
S71.109
Unspecified open wound, unspecified thigh

Code Classification

ChapterS00–T88Injury, poisoning and certain other consequences of external causes
SectionS70-S79Injuries to the hip and thigh
CategoryS71Open wound of hip and thigh
This CodeS71.109DUnspecified open wound, unspecified thigh, subsequent encounter

Present on Admission (POA)Billing

S71.109D 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.

  • Glass in thigh
  • Injury of lateral cutaneous nerve of thigh
  • Lateral cutaneous nerve of thigh lesion
  • Multiple fractures of femur
  • Multiple open fractures of lower end of femur
  • Multiple open wounds of hip and/or thigh
  • Multiple open wounds of lower limb
  • Multiple open wounds of thigh
  • Obturator nerve injury
  • Obturator neuropathy
  • Open comminuted supracondylar fracture of femur
  • Open fracture distal femur, bicondylar
  • Open fracture distal femur, comminuted/intra-articular
  • Open fracture distal femur, lateral condyle
  • Open fracture distal femur, medial condyle
  • Open fracture of apophysis of femur
  • Open fracture of epiphysis of femur
  • Open fracture of femoral condyle of femur
  • Open fracture of femur
  • Open fracture of femur, distal end
  • Open fracture of femur, lower epiphysis
  • Open fracture of head of femur
  • Open fracture proximal femur, transepiphyseal
  • Open injury lateral cutaneous nerve thigh
  • Open injury obturator nerve
  • Open subcapital fracture of femur
  • Open subcapital fracture of proximal femur Garden grade I
  • Open subcapital fracture of proximal femur Garden grade II
  • Open subcapital fracture of proximal femur Garden grade III
  • Open subcapital fracture of proximal femur Garden grade IV
  • Open supracondylar fracture of femur
  • Open wound of thigh
  • Supracondylar fracture femur

Coding GuidelinesGuidance

The appropriate 7th character is to be added to each code from block Open wound of hip and thigh (S71). 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 INJ049
Open wounds to limbs, subsequent encounter
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Leg Injuries and Disorders

Your legs are made up of bones, blood vessels, muscles, and other connective tissue. They are important for motion and standing. Playing sports, running, falling, or having an accident can damage your legs. Common leg injuries include sprains and strains, joint dislocations, and fractures (broken bones).

Read the full article at MedlinePlus

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

Convert S71.109D to ICD-9-CMHistory

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

ICD-9-CM
V58.89 Other specfied aftercare
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 S71.109DOverview

Is S71.109D (Unspecified open wound, unspecified thigh) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report unspecified open wound, unspecified thigh, subsequent encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What does the 7th character D in S71.109D mean?

The final character D marks a subsequent encounter: use it for routine care while the unspecified open wound, unspecified thigh is healing, after active treatment has ended.

What MS-DRG does S71.109D group to?

When unspecified open wound, unspecified thigh, subsequent encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 949, 950, with relative weights from 0.6277 to 1.1897 depending on complications. Higher weights mean higher Medicare reimbursement.

Is S71.109D 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, unspecified thigh, subsequent encounter on inpatient claims.

What is the ICD-9 equivalent of S71.109D?

Under the General Equivalence Mappings, unspecified open wound, unspecified thigh, subsequent encounter converts to ICD-9-CM V58.89 (other specfied aftercare). 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.