2026 ICD-10-CM Diagnosis Code S07.9XXACrushing injury of head, part unspecified, initial encounter
ICD-10-CM Codes›S00–T88›S00-S09›S07
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- 7th Character A — Initial Encounter
- Not Chronic
S07.9XXA is a billable ICD-10-CM diagnosis code for crushing injury of head, part unspecified, 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 11 through 13, 913 through 914, 963 through 965. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 123 closely related codes. Coders also document this condition as crush injury of head and neck. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Crushing injury, initial encounter.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Crush injury of head and neck
- Crushing injury of neck
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Crushing injury of head (S07). 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
Head Injuries
Chances are you've bumped your head before. Often, the injury is minor because your skull is hard and it protects your brain. But other head injuries can be more severe, such as a skull fracture, concussion, or traumatic brain injury.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S07.9XXA to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S07.9XXAOverview
What is the ICD-10 code for crushing injury of head, part unspecified, initial encounter?
The ICD-10-CM code for crushing injury of head, part unspecified, initial encounter is S07.9XXA (sometimes written as S079XXA). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is S07.9XXA (Crushing injury of head, part unspecified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report crushing injury of head, part unspecified, initial encounter on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What does the 7th character A in S07.9XXA mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for crushing injury of head, part unspecified, such as an emergency visit or first evaluation.
What MS-DRG does S07.9XXA group to?
When crushing injury of head, part unspecified, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 11, 12, 13, 913, 914, 963, 964, 965, with relative weights from 0.8855 to 5.4541 depending on complications. Higher weights mean higher Medicare reimbursement.
Is S07.9XXA a CC or MCC?
CMS lists S07.9XXA as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 123 closely related codes in its exclusion list.
