COC Outpatient Coding flashcards

32 cards. Read the term and the definition here. The deck at the top of this page is optional.

UHDDS definition of principal diagnosis

The condition established after study to be chiefly responsible for occasioning the outpatient encounter or admission; used for inpatient and outpatient facility diagnosis selection.

Modifier 25 purpose

Indicates a significant, separately identifiable evaluation and management service by the same physician on the same day as a procedure or other service.

Global surgical package

Bundled pre-operative, intra-operative, and post-operative services included in a surgical code; separate E/M during the global period requires a modifier such as 24.

HCPCS J-code use

Reports drugs and biologicals administered to patients; requires documented dose, route, and units, with units calculated from the administered amount and billing unit.

ICD-10-PCS scope

Procedure classification used for inpatient hospital reporting only; outpatient facility procedures are reported with CPT or HCPCS Level II codes instead.

E/M key components

History, examination, and medical decision making; level of service is set by the components required for the code family or by total time when applicable.

Modifier 59 distinct service

Identifies procedures not normally reported together but distinct due to different session, site, provider, or encounter; X{EPSU} subsets provide more specific alternatives.

Unspecified code criteria

An unspecified ICD-10-CM code is assigned only when documentation does not support a more specific code; query the provider for greater specificity when possible.

Medical necessity documentation

The documented diagnosis must clinically support the service performed; the code alone does not establish necessity, and lack of support risks denial or recoupment.

Cloned documentation risk

Copy-forward text that does not reflect the actual encounter is a compliance vulnerability and may be treated as fraudulent billing if it inflates service levels.

Teaching physician documentation

Requires documented physical presence and participation by the teaching physician for the key components reported, per CMS rules for resident-performed services.

Incident-to requirements

Service must be part of an initiated course of treatment, furnished under direct physician supervision, and reported with the physician's NPI.

ABN purpose

Advance Beneficiary Notice informs the patient that Medicare may deny a service as not medically necessary, shifting financial liability when properly executed.

Provider query process

A formal request for clarification when documentation is ambiguous or inconsistent; the response is used to assign codes and is retained as part of the record.

Signature requirement

The performing or supervising provider must sign and date the encounter note; missing or illegible signatures are a common cause of claim denial.

1995 versus 1997 guidelines

Two E/M documentation frameworks differing in history and exam requirements; the payer's adopted guideline set determines which documentation elements count toward the level.

Observation order timing

Observation time begins at the clock time the physician order is written; hours are reported with HCPCS G0378 and require documented medical necessity.

ED facility level basis

Emergency department facility levels 99281 through 99285 reflect facility resource intensity, not the physician's professional history, exam, and decision making.

Revenue code function

Revenue codes group charges into facility cost centers such as emergency room, clinic, or observation and pair with CPT or HCPCS codes on the UB-04.

OPPS status indicators

Codes on the OPPS addendum carry status indicators that determine separate payment, packaging into another service, or non-payment of the line item.

Comprehensive APC packaging

A C-APC status indicator J primary service packages adjunct services into a single payment, so those adjunct lines are not paid separately.

Condition Code 44

Used when a hospital converts inpatient status to outpatient after utilization review; requires physician concurrence and is reported on the UB-04 claim.

Hospital clinic visit leveling

Facility clinic E/M levels reflect hospital resources used, such as staff time and supplies, rather than the professional fee level assigned by the physician.

Time-based procedure reporting

Time-based codes require documented start and stop times; units are reported based on the actual time interval and code-specific increment rules.

Clean claim rate

Percentage of claims accepted on first submission without edits or rejections; a key front-end indicator of revenue cycle efficiency.

Days in accounts receivable

Calculated as total accounts receivable divided by total charges, multiplied by days in the period; measures how quickly claims convert to cash.

Net collection ratio

Payments divided by gross charges minus contractual adjustments; reflects how effectively the organization collects what it is owed.

NCCI procedure-to-procedure edits

Edits pair codes that should not be billed together; a modifier is allowed only when documentation supports distinct services, otherwise the column two code is denied.

Medically unlikely edits

MUEs set maximum units for a code per date of service; exceeding the limit requires documentation and may trigger line denial or review.

OPPS payment formula

Payment equals APC weight multiplied by the conversion factor, adjusted for wage index and geographic factors, subject to packaging and discounting rules.

Denial root cause tracking

Categorizing denials by eligibility, coding, medical necessity, or authorization and tracking trends to reduce repeat denials and rework costs.

Point-of-service collections

Collecting patient deductible, coinsurance, and copay at the time of service improves cash flow and reduces bad debt and statement costs.