2026 ICD-10-CM Diagnosis Code S74.20XAInjury of cutaneous sensory nerve at hip and thigh level, unspecified leg, initial encounter
S74.20XA is a billable ICD-10-CM diagnosis code for injury of cutaneous sensory nerve at hip and thigh level, unspecified leg, 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 963 through 965. Coders also document this condition as closed injury lateral cutaneous nerve thigh. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Injury to nerves, muscles and tendons, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Closed injury lateral cutaneous nerve thigh
- Injury of lateral cutaneous nerve of thigh
- Lateral cutaneous nerve of thigh lesion
- Open injury lateral cutaneous nerve thigh
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of nerves at hip and thigh level (S74). 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
Hip Injuries and Disorders
Your hip is the joint where your femur (thigh bone) meets your pelvis (hip bone). There are two main parts: a ball at the end of the femur, which fits in a socket in the pelvis. Your hip is known as a ball-and-socket joint. This is because you have a ball at the end of your femur, and it fits into a socket in your pelvis.
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Convert S74.20XA to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S74.20XAOverview
Is S74.20XA a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report injury of cutaneous sensory nerve at hip and thigh level, unspecified leg, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S74.20XA mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for injury of cutaneous sensory nerve at hip and thigh level, unspecified leg, such as an emergency visit or first evaluation.
What MS-DRG does S74.20XA group to?
When injury of cutaneous sensory nerve at hip and thigh level, unspecified leg, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 963, 964, 965, with relative weights from 0.9405 to 2.7338 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of S74.20XA?
Under the General Equivalence Mappings, injury of cutaneous sensory nerve at hip and thigh level, unspecified leg, initial encounter converts to ICD-9-CM 956.4 (inj cutan senso nerv/leg). 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.
