ICD-10-CM Contusion Code Updates for FY 2026

Overview of FY 2026 Contusion Code Changes

The FY 2026 ICD-10-CM update, effective October 1, 2025, introduced new diagnosis codes for contusions of the midsection. 

Contusions are commonly seen in urgent care centers, primary care practices, orthopedic offices, and emergency departments. The existing abdominal wall contusion codes (S30.1XXA-S30.1XXS) will be deleted and replaced by a range of codes offering more specificity.

New ICD-10-CM Codes for Abdominal Wall, Groin, and Flank Contusions

• Abdominal wall, groin, and flank: New parent codes have been introduced: 
• S30.11: Contusion of abdominal wall 
• S30.12: Contusion of groin 
• S30.13: Contusion of flank 

General ICD-10-CM Coding Guidelines for Contusions

• Specificity: Always code to the highest level of specificity. When the location of the contusion is known, use a more specific code than a general one. 
• Encounter type: The seventh character of the code indicates the encounter type. 
• A: Initial encounter 
• D: Subsequent encounter 
• S: Sequela 
• Multiple injuries: If the patient has multiple contusions, code each one individually. 
• Underlying injury: If the contusion is related to another injury, such as a fracture, code the more severe injury first. 
• Provider guidance: Consult with the medical provider for the most accurate diagnosis and coding.  

Why the FY 2026 Contusion Updates Matter

• Increased specificity: The new codes allow for more precise documentation of the injury's location. 
• Updated documentation: Providers must update their documentation and systems to use these new codes to avoid claim denials. 
• More specific details: The updates reflect an ongoing effort in ICD-10 to increase granularity across many conditions.  

Injury Coding Rules Relevant to Contusions

When coding injuries, assign separate codes for each injury unless a combination code is provided, in which case the combination code is assigned. Codes from category T07, Unspecified multiple injuries should not be assigned in the inpatient setting unless information for a more specific code is not available. Traumatic injury codes (S00- T14.9) are not to be used for normal, healing surgical wounds or to identify complications of surgical wounds. The code for the most serious injury, as determined by the provider and the focus of treatment, is sequenced first. 

*Coding Considerations for Superficial Injuries: Superficial injuries such as abrasions or contusions are not coded when associated with more severe injuries of the same site. 



Theresa Bond, CPC, CPMA 

Medical Audit Consultant at UASI

Theresa  is a ProFee Coder and Provider Auditor with more than 13 years of coding experience and 7 years focused on auditing and education. She specializes in pro-fee E/M, inpatient surgery coding, and provider documentation audits, with extensive experience supporting compliance, reducing denials, and educating both coders and providers. Theresa is a member of the American Academy of Professional Coders (AAPC). 

Works Cited

Centers for Medicare & Medicaid Services. (2025). ICD-10-CM Official Guidelines for Coding and Reporting, FY 2026.

Available at https://www.cms.gov/files/document/fy-2026-icd-10-cm-coding-guidelines.pdf

American Academy of Professional Coders. (2025). CMS releases FY 2026 ICD-10-CM update.
Available at https://www.aapc.com/blog/92808-cms-releases-fy-2026-icd-10-cm-update/