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CCC key terms

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ICD-10-CM

A standardized code set used in the United States to assign alphanumeric codes to diagnoses, symptoms, and reasons for healthcare encounters for reporting and reimbursement purposes.

Related: ICD-10-PCS, CPT, Place of Service
ICD-10-PCS

A seven-character alphanumeric code set used in U.S. inpatient hospital settings to describe surgical, medical, and therapeutic procedures performed on patients.

Related: ICD-10-CM, CPT, Principal Diagnosis
CPT

A code set maintained by the American Medical Association that describes medical, surgical, and diagnostic services and is used primarily to report physician and outpatient services for reimbursement.

Related: HCPCS Level II, Modifier, E/M Level
HCPCS Level II

A national code set used to report supplies, drugs, durable medical equipment, and services not described by CPT, often required by Medicare and other payers.

Related: CPT, Modifier, NCCI Edits
Modifier

A two-character code appended to a procedure code to provide additional detail about the service, such as a distinct site, laterality, or a reduced or increased service.

Related: CPT, NCCI Edits, E/M Level
Principal Diagnosis

The condition established after study to be chiefly responsible for occasioning the patient's admission to the hospital for care.

Related: ICD-10-CM, Principal Procedure, Sequencing
Principal Procedure

The procedure performed for definitive treatment that is most closely related to the principal diagnosis, or the procedure most related to the reason for admission.

Related: ICD-10-PCS, Principal Diagnosis, Sequencing
Sequencing

The guideline-driven process of determining which diagnosis or procedure code is listed first on a claim or record, based on the reason for the encounter and official conventions.

Related: Principal Diagnosis, Principal Procedure, Coding Guidelines
Coding Guidelines

Official rules published with a code set that direct how codes are selected, combined, and reported, including conventions for etiology, manifestation, and combination codes.

Related: Sequencing, Principal Diagnosis, Query
Etiology and Manifestation

A coding convention in which the underlying cause of a condition is coded first, followed by the code for the resulting sign or condition it produces.

Related: Coding Guidelines, Sequencing, Combination Code
Combination Code

A single code that reports two diagnoses together, such as an underlying condition and its manifestation, eliminating the need for a separate secondary code.

Related: Etiology and Manifestation, Coding Guidelines, ICD-10-CM
E/M Level

The category of evaluation and management service selected based on documented medical decision making or time, determining the intensity and payment of the visit.

Related: CPT, Modifier, Medical Necessity
Medical Necessity

The determination that a service or item is reasonable and required for the diagnosis or treatment of a patient's condition, supporting payment and defending against denial.

Related: E/M Level, Denial Management, Advance Beneficiary Notice
NCCI Edits

Billing edits that identify code pairs not reportable together because one service is bundled into another, used to prevent improper separate payment.

Related: Modifier, HCPCS Level II, Medical Necessity
Denial Management

The process of reviewing, appealing, and correcting claims that payers have refused to pay, including root-cause analysis to prevent repeat denials.

Related: Medical Necessity, Clean Claim, Advance Beneficiary Notice
Clean Claim

A claim submitted with all required data elements accurate and complete so that a payer can process it without requesting additional information or correction.

Related: Denial Management, Place of Service, Medical Necessity
Place of Service

A two-digit code on a claim identifying where a service was rendered, such as a physician office, outpatient hospital, or inpatient facility, which affects payment.

Related: Clean Claim, CPT, ICD-10-CM
Advance Beneficiary Notice

A written notice given to a Medicare beneficiary before a service likely to be denied as not medically necessary, allowing the patient to accept financial responsibility.

Related: Medical Necessity, Denial Management, Medicare Secondary Payer
Medicare Secondary Payer

Rules determining when Medicare pays after another insurer, such as an employer group health plan or auto policy, is the primary payer.

Related: Advance Beneficiary Notice, Denial Management, Coordination of Benefits
Coordination of Benefits

The process of determining which of two or more health plans pays first on a claim and how the remaining balance is handled by the other plans.

Related: Medicare Secondary Payer, Explanation of Benefits, Denial Management
Explanation of Benefits

A payer statement showing services billed, amounts allowed, amounts paid, and patient responsibility, used to reconcile claims and verify payment accuracy.

Related: Coordination of Benefits, Denial Management, Clean Claim
Query

A formal written request from a coder or clinical documentation specialist to a provider seeking clarification of ambiguous or incomplete documentation before code assignment.

Related: Clinical Documentation Improvement, Coding Guidelines, Health Record Integrity
Clinical Documentation Improvement

A program that works with providers to improve the accuracy, completeness, and specificity of medical record documentation so it fully reflects patient severity and care.

Related: Query, Health Record Integrity, Medical Necessity
Health Record Integrity

The accuracy, completeness, timeliness, and consistency of documentation in a patient's record, supporting quality care, coding accuracy, and legal defensibility.

Related: Clinical Documentation Improvement, Query, Data Quality
Data Quality

The degree to which health data are accurate, complete, consistent, timely, and reliable for clinical, administrative, and reporting purposes.

Related: Health Record Integrity, Clinical Documentation Improvement, Audit
Audit

A systematic review of records and claims against documentation and coding rules to measure accuracy, identify errors, and support compliance and education.

Related: Data Quality, Compliance Program, Health Record Integrity
Compliance Program

An organization's structured set of policies, training, monitoring, and enforcement activities designed to prevent and detect violations of billing and healthcare laws.

Related: Audit, False Claims Act, Anti-Kickback Statute
False Claims Act

A federal law imposing liability on entities that knowingly submit false or fraudulent claims to government payers, with penalties and whistleblower provisions.

Related: Compliance Program, Anti-Kickback Statute, Upcoding
Anti-Kickback Statute

A federal law prohibiting knowingly offering or receiving remuneration to induce referrals for items or services payable by federal healthcare programs.

Related: False Claims Act, Compliance Program, Stark Law
Stark Law

A federal law prohibiting physician self-referral for designated health services payable by Medicare when the physician has a financial relationship with the entity, absent an exception.

Related: Anti-Kickback Statute, Compliance Program, False Claims Act
Upcoding

Reporting a service or diagnosis at a higher level of complexity or payment than documented, which is a form of fraudulent billing.

Related: False Claims Act, Audit, E/M Level
Unbundling

Billing separately for components of a service that should be reported with a single comprehensive code, resulting in improper additional payment.

Related: NCCI Edits, Upcoding, Compliance Program
HIPAA Privacy Rule

Federal regulations governing the use and disclosure of protected health information and establishing patient rights over their health information.

Related: Protected Health Information, Minimum Necessary, Authorization
Protected Health Information

Individually identifiable health information created or received by a covered entity that relates to a person's health, care, or payment for care.

Related: HIPAA Privacy Rule, Minimum Necessary, Authorization
Minimum Necessary

The HIPAA principle requiring that only the least amount of protected health information needed for a purpose be used or disclosed.

Related: HIPAA Privacy Rule, Protected Health Information, Authorization
Authorization

A patient's documented permission allowing use or disclosure of protected health information for purposes not otherwise permitted by the privacy rule.

Related: HIPAA Privacy Rule, Protected Health Information, Minimum Necessary
Anatomical Position

The standard reference posture with the body upright, face forward, arms at the sides, and palms facing forward, used to describe locations and directions.

Related: Body Planes, Proximal and Distal, Laterality
Body Planes

Imaginary flat surfaces, including sagittal, coronal, and transverse, used to divide and describe the body for anatomical reference and documentation.

Related: Anatomical Position, Proximal and Distal, Laterality
Proximal and Distal

Directional terms describing position along a limb, with proximal meaning closer to the body's point of attachment and distal meaning farther away.

Related: Anatomical Position, Body Planes, Laterality
Laterality

The side of the body on which a condition or procedure occurs, such as right or left, which must be documented and captured in coding.

Related: Modifier, Anatomical Position, Health Record Integrity