CCC key terms
CCC · Get comfortable with the vocabulary.
- ICD-10-CM
- Related: ICD-10-PCS, CPT, Place of Service
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.
- ICD-10-PCS
- Related: ICD-10-CM, CPT, Principal Diagnosis
A seven-character alphanumeric code set used in U.S. inpatient hospital settings to describe surgical, medical, and therapeutic procedures performed on patients.
- CPT
- Related: HCPCS Level II, Modifier, E/M Level
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.
- HCPCS Level II
- Related: CPT, Modifier, NCCI Edits
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.
- Modifier
- Related: CPT, NCCI Edits, E/M Level
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.
- Principal Diagnosis
- Related: ICD-10-CM, Principal Procedure, Sequencing
The condition established after study to be chiefly responsible for occasioning the patient's admission to the hospital for care.
- Principal Procedure
- Related: ICD-10-PCS, Principal Diagnosis, Sequencing
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.
- Sequencing
- Related: Principal Diagnosis, Principal Procedure, Coding Guidelines
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.
- Coding Guidelines
- Related: Sequencing, Principal Diagnosis, Query
Official rules published with a code set that direct how codes are selected, combined, and reported, including conventions for etiology, manifestation, and combination codes.
- Etiology and Manifestation
- Related: Coding Guidelines, Sequencing, Combination Code
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.
- Combination Code
- Related: Etiology and Manifestation, Coding Guidelines, ICD-10-CM
A single code that reports two diagnoses together, such as an underlying condition and its manifestation, eliminating the need for a separate secondary code.
- E/M Level
- Related: CPT, Modifier, Medical Necessity
The category of evaluation and management service selected based on documented medical decision making or time, determining the intensity and payment of the visit.
- Medical Necessity
- Related: E/M Level, Denial Management, Advance Beneficiary Notice
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.
- NCCI Edits
- Related: Modifier, HCPCS Level II, Medical Necessity
Billing edits that identify code pairs not reportable together because one service is bundled into another, used to prevent improper separate payment.
- Denial Management
- Related: Medical Necessity, Clean Claim, Advance Beneficiary Notice
The process of reviewing, appealing, and correcting claims that payers have refused to pay, including root-cause analysis to prevent repeat denials.
- Clean Claim
- Related: Denial Management, Place of Service, Medical Necessity
A claim submitted with all required data elements accurate and complete so that a payer can process it without requesting additional information or correction.
- Place of Service
- Related: Clean Claim, CPT, ICD-10-CM
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.
- Advance Beneficiary Notice
- Related: Medical Necessity, Denial Management, Medicare Secondary Payer
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.
- Medicare Secondary Payer
- Related: Advance Beneficiary Notice, Denial Management, Coordination of Benefits
Rules determining when Medicare pays after another insurer, such as an employer group health plan or auto policy, is the primary payer.
- Coordination of Benefits
- Related: Medicare Secondary Payer, Explanation of Benefits, Denial Management
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.
- Explanation of Benefits
- Related: Coordination of Benefits, Denial Management, Clean Claim
A payer statement showing services billed, amounts allowed, amounts paid, and patient responsibility, used to reconcile claims and verify payment accuracy.
- Query
- Related: Clinical Documentation Improvement, Coding Guidelines, Health Record Integrity
A formal written request from a coder or clinical documentation specialist to a provider seeking clarification of ambiguous or incomplete documentation before code assignment.
- Clinical Documentation Improvement
- Related: Query, Health Record Integrity, Medical Necessity
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.
- Health Record Integrity
- Related: Clinical Documentation Improvement, Query, Data Quality
The accuracy, completeness, timeliness, and consistency of documentation in a patient's record, supporting quality care, coding accuracy, and legal defensibility.
- Data Quality
- Related: Health Record Integrity, Clinical Documentation Improvement, Audit
The degree to which health data are accurate, complete, consistent, timely, and reliable for clinical, administrative, and reporting purposes.
- Audit
- Related: Data Quality, Compliance Program, Health Record Integrity
A systematic review of records and claims against documentation and coding rules to measure accuracy, identify errors, and support compliance and education.
- Compliance Program
- Related: Audit, False Claims Act, Anti-Kickback Statute
An organization's structured set of policies, training, monitoring, and enforcement activities designed to prevent and detect violations of billing and healthcare laws.
- False Claims Act
- Related: Compliance Program, Anti-Kickback Statute, Upcoding
A federal law imposing liability on entities that knowingly submit false or fraudulent claims to government payers, with penalties and whistleblower provisions.
- Anti-Kickback Statute
- Related: False Claims Act, Compliance Program, Stark Law
A federal law prohibiting knowingly offering or receiving remuneration to induce referrals for items or services payable by federal healthcare programs.
- Stark Law
- Related: Anti-Kickback Statute, Compliance Program, False Claims Act
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.
- Upcoding
- Related: False Claims Act, Audit, E/M Level
Reporting a service or diagnosis at a higher level of complexity or payment than documented, which is a form of fraudulent billing.
- Unbundling
- Related: NCCI Edits, Upcoding, Compliance Program
Billing separately for components of a service that should be reported with a single comprehensive code, resulting in improper additional payment.
- HIPAA Privacy Rule
- Related: Protected Health Information, Minimum Necessary, Authorization
Federal regulations governing the use and disclosure of protected health information and establishing patient rights over their health information.
- Protected Health Information
- Related: HIPAA Privacy Rule, Minimum Necessary, Authorization
Individually identifiable health information created or received by a covered entity that relates to a person's health, care, or payment for care.
- Minimum Necessary
- Related: HIPAA Privacy Rule, Protected Health Information, Authorization
The HIPAA principle requiring that only the least amount of protected health information needed for a purpose be used or disclosed.
- Authorization
- Related: HIPAA Privacy Rule, Protected Health Information, Minimum Necessary
A patient's documented permission allowing use or disclosure of protected health information for purposes not otherwise permitted by the privacy rule.
- Anatomical Position
- Related: Body Planes, Proximal and Distal, Laterality
The standard reference posture with the body upright, face forward, arms at the sides, and palms facing forward, used to describe locations and directions.
- Body Planes
- Related: Anatomical Position, Proximal and Distal, Laterality
Imaginary flat surfaces, including sagittal, coronal, and transverse, used to divide and describe the body for anatomical reference and documentation.
- Proximal and Distal
- Related: Anatomical Position, Body Planes, Laterality
Directional terms describing position along a limb, with proximal meaning closer to the body's point of attachment and distal meaning farther away.
- Laterality
- Related: Modifier, Anatomical Position, Health Record Integrity
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.