2026 ICD-10-CM Diagnosis Code S71.101AUnspecified open wound, right thigh, initial encounter

ICD-10-CM Codes›S00–T88›S70-S79›S71

ICD-10-CM S71.101A
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

S71.101A is a billable ICD-10-CM diagnosis code for unspecified open wound, right thigh, 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 604 through 605, 963 through 965. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Open wounds to limbs, initial encounter.

Code Identity

ICD-10-CM Code
S71.101A
Billable Status
Yes — Valid for Submission
Code Describes
Unspecified open wound, right thigh, initial encounter
Short Description
Unspecified open wound, right thigh, initial encounter
Same as the full description in the CMS dataset.
Parent Code
S71.101
Unspecified open wound, right 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 CodeS71.101AUnspecified open wound, right thigh, initial encounter

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Basicervical fracture of neck of femur
  • Fracture of distal epiphysis of right femur
  • Fracture of greater trochanter
  • Fracture of midcervical section of neck of right femur
  • Fracture of neck of right femur
  • Fracture of shaft of right femur
  • Intertrochanteric fracture of right femur
  • Midcervical fracture of neck of femur
  • Open fracture distal femur, lateral condyle
  • Open fracture of base of neck of femur
  • Open fracture of base of neck of right femur
  • Open fracture of condyle of right femur
  • Open fracture of distal end of right femur
  • Open fracture of femoral condyle of femur
  • Open fracture of femur, greater trochanter
  • Open fracture of femur, lower epiphysis
  • Open fracture of greater trochanter of right femur
  • Open fracture of head of femur
  • Open fracture of head of right femur
  • Open fracture of lateral condyle of distal right femur
  • Open fracture of midcervical section of femur
  • Open fracture of midcervical section of right femur
  • Open fracture of neck of femur
  • Open fracture of neck of right femur
  • Open fracture of right femur
  • Open fracture of shaft of femur
  • Open fracture of shaft of right femur
  • Open intertrochanteric fracture of right femur
  • Open subcapital fracture of femur
  • Open subcapital fracture of right femur
  • Open subtrochanteric fracture of right femur
  • Open supracondylar fracture of right femur
  • Open wound of right thigh
  • Subtrochanteric fracture of femur
  • Subtrochanteric fracture of right 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 INJ012
Open wounds to limbs, initial 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 S71.101A to ICD-9-CMHistory

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

ICD-9-CM
890.0 Open wound of hip/thigh
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 S71.101AOverview

Is S71.101A (Unspecified open wound, right thigh) a billable code?

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

What does the 7th character A in S71.101A mean?

The final character A marks the initial encounter: use it while the patient is receiving active treatment for unspecified open wound, right thigh, such as an emergency visit or first evaluation.

What MS-DRG does S71.101A group to?

When unspecified open wound, right thigh, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 604, 605, 963, 964, 965, with relative weights from 0.9160 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of S71.101A?

Under the General Equivalence Mappings, unspecified open wound, right thigh, initial encounter converts to ICD-9-CM 890.0 (open wound of hip/thigh). 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.