COC Outpatient Coding key terms

A five-digit numeric code from the Current Procedural Terminology system that describes a medical service or procedure performed by a provider, used to report outpatient services for reimbursement.

The classification system used to assign diagnosis codes describing a patient's condition, symptoms, or reason for an encounter, reported alongside procedure codes on outpatient claims.

A code set of five-character alphanumeric codes used to report supplies, drugs, durable medical equipment, and services not represented in CPT, commonly required on facility outpatient claims.

A category of CPT codes describing provider services such as office visits and hospital consultations, selected based on documented history, examination, and medical decision making or time.

A two-character code appended to a procedure code to clarify circumstances such as a distinct service, laterality, or a reduced or discontinued procedure, affecting how the claim is processed.

A two-digit code on a claim identifying where a service was furnished, such as a physician office or hospital outpatient department, which influences payment rates and coding rules.

A four-digit code used on facility claims to identify the type of service or department that generated a charge, such as emergency room or pharmacy, grouped by category.

The standard paper or electronic claim format used by institutional providers such as hospitals to bill outpatient and inpatient services, organized by revenue codes and line items.

The standard claim form used by non-institutional providers such as physicians to bill professional services, listing diagnosis codes, procedure codes, and charges for each encounter.

The condition established after study to be chiefly responsible for the patient's encounter, sequenced first on the claim and used as the basis for grouping and payment.

The determination that a service or item is reasonable and required to diagnose or treat a condition, supported by documentation linking the diagnosis to the service billed.

The complexity of establishing a diagnosis and selecting a management option, considering problems addressed, data reviewed, and risk, used to select many evaluation and management code levels.

The rules describing what must be recorded in the medical record to support the codes reported, including elements of history, examination, and decision making or time.

A federal program of edits that identifies code pairs that should not be billed together, guiding correct code combination and reducing improper payments on claims.

Billing components of a procedure separately when a single comprehensive code already includes them, which is generally improper and can trigger claim denials or payer audits.

A procedure code that includes multiple related services within a single payment, so component services are not separately reportable unless documentation supports an exception.

Code assignment performed for institutional providers such as hospitals, following rules that differ from professional coding, including use of revenue codes and facility payment groups.

The prospective payment system used by Medicare to pay hospital outpatient departments, grouping clinically similar services into payment categories with assigned relative weights.

The portion of a service representing a physician's interpretation or supervision, billed separately from the technical component when a global service is split between providers.

The portion of a diagnostic service representing equipment, supplies, and staff time, distinct from the physician interpretation, and billed by the entity furnishing the equipment.

A written notice given to a Medicare beneficiary before a service that may not be covered, so the patient accepts financial responsibility if the claim is denied.

A claim submitted with complete and accurate information that requires no further development or correction before the payer can adjudicate it for payment.

An automated review of claim data before submission that checks for missing fields, invalid code combinations, and payer-specific errors to prevent rejections and denials.

A payer's refusal to pay a claim or line item, often due to missing authorization, coding errors, or lack of medical necessity, requiring review and possible appeal.

A formal request to a payer to reconsider a denied claim, supported by documentation and rationale, following the plan's review process and deadlines.

A document from a payer explaining how a claim was processed, showing paid, denied, or adjusted amounts and reason codes used to post payments and manage follow-up.

A statement sent to a patient summarizing services billed, amounts paid by the plan, and patient responsibility, often used to answer billing questions and collect balances.

A fixed amount a patient pays at the time of service, as defined by the health plan, which the provider may collect and which affects patient financial counseling.

The amount a patient must pay out of pocket for covered services before the health plan begins to pay, tracked during eligibility and benefits verification.

The process of confirming with a payer that a patient's coverage is active and identifying benefit limits, prior authorization needs, and cost-sharing before services are rendered.

Payer approval obtained before certain services are performed, confirming coverage and medical necessity, without which a claim may be denied after the fact.

A compliant written request from a coder to a provider for clarification of ambiguous or incomplete documentation, used to assign accurate codes without leading the provider.

Reporting a service with a code that reflects a higher level or cost than documented, an improper billing practice that can constitute fraud and lead to penalties.

A systematic review of medical records and claims to verify that codes match documentation and payer rules, used to identify errors and support compliance improvement.

The process of recording services, supplies, and drugs provided during an encounter so they can be coded and billed, requiring accurate and timely entry to avoid lost revenue.

The total money owed to a provider for services already billed but not yet paid, monitored through aging reports to manage collections and reduce unpaid balances.

The rules determining which of a patient's multiple insurance plans pays first, affecting how claims are submitted and how secondary payers are billed.