1What Is the C180 OHIP Code?
The C180 billing code is designated for special neurology consultations provided to hospital in-patients in Ontario. This service is applicable when a patient presents with complex neurological conditions that surpass the scope of a general consultation. Such scenarios include new focal deficits requiring localization before imaging, handling of status epilepticus or repeated seizures, suspected autoimmune or infectious encephalitis under work-up, and rapidly progressive weakness.
A key point of differentiation is recognizing when the consultation's complexity justifies the use of C180 over other consultation codes like A185 or A385. It is commonly missed due to the similar presence of A180 for non-hospital settings or not identifying the unique clinical circumstances that necessitate the special consultation.
2Related Codes
| Code | Name | Frequency | Description |
|---|---|---|---|
| A180 | Special neurology consultation | One service every 12 months, outpatient equivalent | Equivalent to C180 but for outpatient settings. |
| A185 | Consultation | Standard consultation frequency | General neurology consultation for less complex cases. |
| A186 | Repeat consultation | Based on necessity within consultation limits | For follow-up consultations requiring further assessment. |
| A385 | Limited consultation | Based on necessity within consultation limits | For brief or focused neurological assessments. |
3Eligibility Requirements
Eligibility for billing C180 includes one special neurology consultation per patient every two consecutive 12-month periods for the same physician and diagnosis. An exception allows for two consultations if the second occurs between 12 and 24 months and the patient is in a hospital or emergency department setting. In cases of unrelated diagnoses, one service can be billed every 12 months. Services exceeding these limits revert to the general or specific assessment rate.
Additionally, the code can be rendered virtually via video, billed as C180A, but is not eligible when conducted via telephone.
This service can only be billed six months following a periodic health visit under the Nursing Homes Act.
4What Your Clinical Note Must Show
Ensure all necessary information to support the billing of C180 is recorded in the patient chart.
- Detailed patient history and examination notes justifying complexity.
- Documentation of differential diagnosis and rationale for imaging.
- Clinical notes on referral leading to, or follow-up from, the consultation.
5Weak vs. Strong Note Examples
The strong note succeeds by clearly detailing the complexity and clinical reasoning for the consultation, while the weak note lacks sufficient detail for billing justification.
Patient presented with headache. Consultation performed.
Patient presented with sudden onset left-sided weakness.
Extensive evaluation performed including differential diagnosis for acute ischemic event.
Localization conducted prior to imaging to guide targeted investigations.
- Patient history indicating rapid progression and specific neurological deficits.
- Rationale for specialized imaging and subsequent treatment plan.
- Inpatient status documented with details of referral from ER.
