S06.326A: Contusion and laceration of left cerebrum with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, initial encounter

S06.326A, contusion and laceration of left cerebrum with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, initial encounter, is listed as a covered diagnosis in 3 Medicare billing and coding articles that apply to 10 HCPCS Level II codes, including G0451 (Development testing, with interpretation and report, per…), G2187 (Patients with clinical indications for imaging of the…), G2188 (Patients with clinical indications for imaging of the…). The articles come from 3 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.

HCPCS Level II codes with S06.326A as a covered diagnosis

CodeDescriptionMedicare coverageDMEPOS fee 2026 (state range)Articles listing it
G0451Development testing, with interpretation and report, per standardized instrument formCarrier judgment—2
G2187Patients with clinical indications for imaging of the head: head traumaCarrier judgment—1
G2188Patients with clinical indications for imaging of the head: new or change in headache above 50 years of ageCarrier judgment—1
G2189Patients with clinical indications for imaging of the head: abnormal neurologic examCarrier judgment—1
G2190Patients with clinical indications for imaging of the head: headache radiating to the neckCarrier judgment—1
G2191Patients with clinical indications for imaging of the head: positional headachesCarrier judgment—1
G2192Patients with clinical indications for imaging of the head: temporal headaches in patients over 55 years of ageCarrier judgment—1
G2193Patients with clinical indications for imaging of the head: new onset headache in pre-school children or younger (<6 years of age)Carrier judgment—1
G2194Patients with clinical indications for imaging of the head: new onset headache in pediatric patients with disabilities for which headache is a concern as inferred from behaviorCarrier judgment—1
G2195Patients with clinical indications for imaging of the head: occipital headache in childrenCarrier judgment—1

Medicare policy articles listing S06.326A

A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.

Other S06 diagnoses (Intracranial injury)

Frequently asked questions

Does Medicare cover S06.326A (Contusion and laceration of left cerebrum with loss of…)?

Medicare covers items and services, not diagnoses. 3 Medicare billing and coding articles list S06.326A as a covered diagnosis for 10 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.

Which HCPCS codes can be billed with ICD-10 S06.326A?

The Level II codes from the policies most specific to this diagnosis are G0451 (Development testing, with interpretation and report, per…, 2 articles); G2187 (Patients with clinical indications for imaging of the…, 1 article); G2188 (Patients with clinical indications for imaging of the…, 1 article); G2189 (Patients with clinical indications for imaging of the…, 1 article); G2190 (Patients with clinical indications for imaging of the…, 1 article). Code choice depends on the item supplied; check each code's descriptor.

Which Medicare policy articles list S06.326A?

A56937 (Billing and Coding: Psychiatry and Psychology Services); A57780 (Billing and Coding: Psychological and Neuropsychological Tests); A56612 (Billing and Coding: CT of the Head).

What is ICD-10-CM code S06.326A?

S06.326A is the ICD-10-CM code for contusion and laceration of left cerebrum with loss of consciousness greater than 24 hours without return to pre-existing conscious level with patient surviving, initial encounter, in category S06 (Intracranial injury), chapter 19: Injury, poisoning and other consequences of external causes.

Next steps

Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.

Chapter 19: Injury, poisoning and other consequences of external causes · All diagnoses · HCPCS lookup