2021 ICD-10-CM Diagnosis Code S02.1

Fracture of base of skull

    2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
  • S02.1 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2021 edition of ICD-10-CM S02.1 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of S02.1 - other international versions of ICD-10 S02.1 may differ.
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (S02.1) and the excluded code together.
  • lateral orbital wall (
    ICD-10-CM Diagnosis Code S02.84

    Fracture of lateral orbital wall

      2020 - New Code 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    S02.84-
    )
  • medial orbital wall (
    ICD-10-CM Diagnosis Code S02.83

    Fracture of medial orbital wall

      2020 - New Code 2021 Non-Billable/Non-Specific Code
    Type 2 Excludes
    S02.83-
    )
  • orbital floor (
    ICD-10-CM Diagnosis Code S02.3

    Fracture of orbital floor

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Fracture of inferior orbital wall
    Type 1 Excludes
    Type 2 Excludes
    S02.3-
    )
The following code(s) above S02.1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to S02.1:
  • S00-T88
    2021 ICD-10-CM Range S00-T88

    Injury, poisoning and certain other consequences of external causes

    Note
    • Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
    Type 1 Excludes
    Use Additional
    • code to identify any retained foreign body, if applicable (Z18.-)
    Injury, poisoning and certain other consequences of external causes
  • S00-S09
    2021 ICD-10-CM Range S00-S09

    Injuries to the head

    Code Also
    • for any associated infection
    Includes
    • 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
    Type 2 Excludes
    • 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)
    Injuries to the head
  • S02
    ICD-10-CM Diagnosis Code S02

    Fracture of skull and facial bones

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code Also
    • any associated intracranial injury (S06.-)
    Note
    • A fracture not indicated as open or closed should be coded to closed
    Fracture of skull and facial bones
Clinical Information
  • Fractures which extend through the base of the skull, usually involving the petrous bone. Battle's sign (characterized by skin discoloration due to extravasation of blood into the subcutaneous tissue behind the ear and over the mastoid process), cranial neuropathies, traumatic; carotid-cavernous sinus fistula; and cerebrospinal fluid otorrhea are relatively frequent sequelae of this condition. (Adams et al., Principles of Neurology, 6th ed, p876)
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
  • 2021 (effective 10/1/2020): No change
Code annotations containing back-references to S02.1:
  • Type 2 Excludes: S02.3
    , S05
    ICD-10-CM Diagnosis Code S02.3

    Fracture of orbital floor

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Fracture of inferior orbital wall
    Type 1 Excludes
    Type 2 Excludes
    ICD-10-CM Diagnosis Code S05

    Injury of eye and orbit

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Includes
    • open wound of eye and orbit
    Type 2 Excludes
ICD-10-CM Codes Adjacent To S02.1
S01.95XD …… subsequent encounter
S01.95XS …… sequela
S02 Fracture of skull and facial bones
S02.0 Fracture of vault of skull
S02.0XXA …… initial encounter for closed fracture
S02.0XXB …… initial encounter for open fracture
S02.0XXD …… subsequent encounter for fracture with routine healing
S02.0XXG …… subsequent encounter for fracture with delayed healing
S02.0XXK …… subsequent encounter for fracture with nonunion
S02.0XXS …… sequela
S02.1 Fracture of base of skull
S02.10 Unspecified fracture of base of skull
S02.101 Fracture of base of skull, right side
S02.101A …… initial encounter for closed fracture
S02.101B …… initial encounter for open fracture
S02.101D …… subsequent encounter for fracture with routine healing
S02.101G …… subsequent encounter for fracture with delayed healing
S02.101K …… subsequent encounter for fracture with nonunion
S02.101S …… sequela
S02.102 Fracture of base of skull, left side
S02.102A …… initial encounter for closed fracture

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.