2027 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 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

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 2027 (October 1, 2026 through September 30, 2027) 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 the other POA exempt codes in Injuries to the hip and thigh (S70-S79).

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 distal epiphysis 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 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 2027, published by CMS and the National Center for Health Statistics.

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to S71.109D: its own notes plus those printed at S71, block S70-S79, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From S71 Open wound of hip and thigh applies to 108 codes
  • open fracture of hip and thigh (S72.-)
  • traumatic amputation of hip and thigh (S78.-)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From S71 Open wound of hip and thigh applies to 108 codes
  • bite of venomous animal (T63.-)
  • open wound of ankle, foot and toes (S91.-)
  • open wound of knee and lower leg (S81.-)
From Block S70-S79 Injuries to the hip and thigh applies to 3,546 codes
From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • code to identify any retained foreign body, if applicable (Z18.-)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From S71 Open wound of hip and thigh applies to 108 codes
  • any associated wound infection

Notes

General instructions on how these codes are used.

From Chapter 19 (S00-T88) Injury, poisoning and certain other consequences of external causes applies to 41,187 codes
  • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
  • The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.

7th Character

Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.

From S71 Open wound of hip and thigh applies to 108 codes
  • The appropriate 7th character is to be added to each code from category S71
Values for category S71 Encounter: Initial, Subsequent, Sequela
  • Ainitial encounter
  • Dsubsequent encounter this code
  • Ssequela

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name S71.109D, its category, or a range that includes it.

Code Also 3

These codes say S71.109D may also be needed to fully describe the condition. The note gives no sequencing direction.

  • S74 Injury of nerves at hip and thigh level
    any associated open wound (S71.-) names S71.-, which includes this code
  • S75 Injury of blood vessels at hip and thigh level
    any associated open wound (S71.-) names S71.-, which includes this code
  • S76 Injury of muscle, fascia and tendon at hip and thigh level
    any associated open wound (S71.-) names S71.-, which includes this code

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 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About S71.109DOverview

What is the ICD-10 code for unspecified open wound, unspecified thigh, subsequent encounter?

The ICD-10-CM code for unspecified open wound, unspecified thigh, subsequent encounter is S71.109D (sometimes written as S71109D). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

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, 2026 through September 30, 2027.

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 950, 949, with relative weights from 0.7661 to 1.1231 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. The code appears in the Injuries to the hip and thigh (S70-S79) range of the CMS exempt list.