Injuries to the head (S00-S09) ICD-10-CM
The S00–S09 section covers injuries to the head with 2,690 ICD-10-CM diagnosis codes, of which 1,934 are billable in fiscal year 2026. The section is organized into the 10 code ranges listed below.
Includes
This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- injuries of ear
- injuries of eye
- injuries of face [any part]
- injuries of gum
- injuries of jaw
- injuries of oral cavity
- injuries of palate
- injuries of periocular area
- injuries of scalp
- injuries of temporomandibular joint area
- injuries of tongue
- injuries of tooth
Code Also
A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- for any associated infection
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- burns and corrosions T20 T32
- effects of foreign body in ear T16
- effects of foreign body in larynx T17.3
- effects of foreign body in mouth NOS T18.0
- effects of foreign body in nose T17.0 T17.1
- effects of foreign body in pharynx T17.2
- effects of foreign body on external eye T15
- frostbite T33 T34
- insect bite or sting, venomous T63.4
Code Ranges in This Section 10 ranges · 2,690 codes
The info icon previews the code ranges inside each row and its instructional notations from the official Tabular List.
About the S00–S09 Code Range
ICD-10 codes S00-S09 are used to classify different types of injuries to the head, including superficial injuries, open wounds, fractures, dislocations, nerve injuries, eye injuries, intracranial injuries, and crushing injuries. These codes specify the exact location, severity, and encounter type such as initial treatment, follow-up care, or sequela (lasting effects).
This range covers superficial injuries like abrasions, contusions, and bites of the scalp, eyelids, nose, ears, lips, and oral cavity, with detailed codes differentiating right, left, or unspecified sides, and injury status such as infected or noninfected. It also includes open wounds from lacerations, punctures, or bites, with further distinction by presence of foreign bodies and whether the injury is new, healing, or a late effect. Fractures of the skull, facial bones (including mandible, maxilla, zygoma, and nasal bones), and other skull parts are extensively categorized by location, fracture type (open or closed), healing status, and complications. Dislocations and sprains of head joints, especially the jaw and nasal septum, have precise definitions to facilitate accurate coding. Injury to cranial nerves (like optic, facial, and acoustic nerves) and detailed eye and orbital injuries (such as corneal abrasion, laceration, hemorrhage, and traumatic avulsion) are identifiable with specific codes. Intracranial injuries cover a spectrum from concussions to cerebral edema, hemorrhages (epidural, subdural, subarachnoid), contusions, lacerations, and other brain injuries, classified by loss of consciousness duration, encounter type, and whether sequelae are present. The codes also address unique trauma types like traumatic brain compression and primary blast injuries.
By including synonyms like "superficial injury of scalp," "contusion of eyelid," "open wound of scalp," "LeFort fracture," "traumatic brain injury," and "traumatic subdural hemorrhage," this ICD-10 code range allows healthcare providers and coders to precisely document head injuries for clinical and administrative purposes. Encounter extensions and laterality modifiers assist in distinguishing the patient's treatment phase and injury location, ensuring detailed and accurate reporting for patient care and billing.
Questions About This Page
How many codes are in the S00-S09 range?
The S00-S09 range contains 2,690 ICD-10-CM diagnosis codes in FY 2026. 1,934 of them are billable, and the rest are category headers that organize the section.
What conditions does S00-S09 cover?
The range covers injuries to the head. The code ranges listed above break it into groups of related conditions, and each one links to its own page with the full code list.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
