S02.1
Non-Billable

Fracture of base of skull

Non-Billable / Non-Specific Code

What is Fracture of base of skull?

ICD-10-CM S02.1 is the diagnosis code for Fracture of base of skull. This code falls under the section "Injuries to the head" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

â„šī¸ Excludes2

Coding Guidelines for S02.1

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in S02.1. If the patient has both, code each condition separately:

  • lateral orbital wall (S02.84-)
  • medial orbital wall (S02.83-)
  • orbital floor (S02.3-)

ICD-10-CM Code Hierarchy

Understanding where S02.1 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 4 entries
S02.10Unspecified fracture of base of skullNon-BillableS02.101Fracture of base of skull, right sideBillableS02.102Fracture of base of skull, left sideBillableS02.109Fracture of base of skull, unspecified sideBillableS02.11Fracture of occiputNon-BillableS02.110Type I occipital condyle fracture, unspecified sideBillableS02.111Type II occipital condyle fracture, unspecified sideBillableS02.112Type III occipital condyle fracture, unspecified sideBillableS02.113Unspecified occipital condyle fractureBillableS02.118Other fracture of occiput, unspecified sideBillableS02.119Unspecified fracture of occiputBillableS02.11AType I occipital condyle fracture, right sideBillableS02.11BType I occipital condyle fracture, left sideBillableS02.11CType II occipital condyle fracture, right sideBillableS02.11DType II occipital condyle fracture, left sideBillableS02.11EType III occipital condyle fracture, right sideBillableS02.11FType III occipital condyle fracture, left sideBillableS02.11GOther fracture of occiput, right sideBillableS02.11HOther fracture of occiput, left sideBillableS02.12Fracture of orbital roofNon-BillableS02.121Fracture of orbital roof, right sideBillableS02.122Fracture of orbital roof, left sideBillableS02.129Fracture of orbital roof, unspecified sideBillableS02.19Other fracture of base of skullBillable
Related Codes

Frequently Asked Questions

Is S02.1 a billable ICD-10-CM code?

No, S02.1 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does S02.1 mean?

S02.1 is the ICD-10-CM diagnosis code for "Fracture of base of skull". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of S02.1?

The parent code of S02.1 is S02 ("Fracture of skull and facial bones"). S02.1 provides a more specific classification within this category.

What section is S02.1 in?

S02.1 is located in Section S00-S09 — "Injuries to the head" within Chapter 19 of the ICD-10-CM Tabular List.

What are the sub-codes of S02.1?

S02.1 has 4 sub-code(s) that provide more specific detail: S02.10, S02.11, S02.12, S02.19.

When should I use S02.1?

Use S02.1 when the patients documented diagnosis matches "Fracture of base of skull" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Fracture of base of skull?

The ICD-10-CM code for Fracture of base of skull is S02.1.

Can S02.1 be used for primary diagnosis?

No, S02.1 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is S02.1 in?

S02.1 is in Chapter 19 of the ICD-10-CM Tabular List.

Is S02.1 valid for 2026?

Yes, S02.1 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousS02.0Fracture of vault of skullNext →S02.10Unspecified fracture of base of skull
Code Details
S02.1
Fracture of base of skull
Non-Billable / Non-Specific Code
19 — Injury, poisoning and certain other consequences of external causes (S00-T88)
S00-S09 — Injuries to the head
2026 ICD-10-CM