CodeBase
CodeBase is a collection of references that contain the most current and relevant coding and compliance information. When you perform an advanced search for a specific code or term in the CodeBase database, each of the following collections is queried for results. Click each collection to view further details.

This collection provides all essential information about Current Procedural Terminology (CPT) or level I codes maintained by the American Medical Association (AMA) and Healthcare Common Procedure Coding System (HCPCS) or level II codes maintained by the Centers for Medicare and Medicaid (CMS). Search results include:
CPT
- CPT® guidelines
- CCI edits
- Reimbursement numbers
- NCD and LCD policy links
- Referencing documents
- Appropriate modifiers and revenue codes
- Clinic and user notes
- Anesthesia codes
- Reportable/required devices
- Crosswalk to the ICD-9 procedural coding system
- Medicare preferred codes and coding intelligence are provided when applicable
HCPCS
- Services
- Procedures
- Durable Medical Equipment (DME)
- Supplies
- Drugs
- Biologics
- Radiopharmaceuticals not found in the CPT code set

This collection contains comprehensive details for self-administered drug (SAD) codes. Search results ultimately navigate you to the HCPCS Detail page, where the icon lets you know the code is a SAD.

Addendum B reflects payment status by HCPCS code and related information such as status indicators, APC groups, and OPPs payment rates.
Addenda are updated at the beginning of each quarter and are part of a quarterly Outpatient Prospective Payment System (OPPS) notification transmittal.

Addendum C reflects Healthcare Common Procedure Coding System (HCPCS) codes by Ambulatory Payment Classification (APC).
Addenda are updated at the beginning of each quarter and are part of a quarterly Outpatient Prospective Payment System (OPPS) notification transmittal.

Addendum E reflects CPT codes that are paid only as Inpatient Procedures.
Addenda are updated at the beginning of each quarter and are part of a quarterly Outpatient Prospective Payment System (OPPS) notification transmittal.

This collection currently provides the Medi-Cal rates schedule for California only. In the future, Medicaid rates for other states will be included. The reimbursement rates provided to not reflect payment augmentations or reductions that are applied as part of the final payment to Medi-Cal providers.

This collection provides a way to look up International Classification of Diseases Revision 9 for hospital inpatient service procedure codes. When you perform a search for a specific code, your results are displayed in a tab with short descriptions and links (icons) for:
- ICD-9 to CPT Procedure Crosswalk
- ICD-9 to ICD-10 Crosswalk
- Referencing documents
- Clinic/user notes

This collection contains all information pertinent to ICD-9 diagnosis codes. Search results include:
- Standard descriptions
- Effective dates
- Official notes
- Relevant ICD-9 chapter references
- Referencing documents and policies
- Clinic and user notes
- A table of procedures occurring on claims with this diagnosis, sorted by prevalence

This collection contains inpatient procedural coding information from the ICD-10 PCS Codebook. The ICD-10 PCS coding system requires codes to have seven alphanumeric characters based on the format of the ICD-10 PCS Codebook. The ICD-10- PCS Codebook is divided into two sections: the Alphabetic Index and Tables. Both sections must be consulted to build a valid ICD-10 PCS code.
When you search for an ICD-10 PCS code in Knowledge Source, you will be ultimately navigated to the ICD-10 PCS Detail page where detailed code information is available. If you have access to the Knowledge Source Reference Center, the ICD-10 PCS Code Builder is a great tool to assist with ICD-10 PCS coding.
Note: Access to the Reference Center requires an additional add-on fee. To learn more about purchasing this add-on, contact an FinThrive representative.

This collection contains inpatient and outpatient ICD-10 CM diagnosis coding information from the ICD-10 CM Codebook. The ICD-10 CM coding system requires codes to have three to seven alpha-numeric characters. This table breaks down the character order and descriptions:
Character Order |
Description |
Notes |
---|---|---|
Character 1 |
Always a letter. |
Characters 1 - 3 make up a category.
|
Character 2 |
Always a number. |
|
Character 3 |
Either a letter or a number |
|
Characters 4 - 7 |
Can be letters or numbers |
Characters 4 - 7 make up sub-categories. |
Each code must be reported to the highest character number to avoid claim denials and payment delays.

This collection provides a list of codes developed by the World Health Organization to describe the histology and behavior of neoplasms. Search results include the standard description, category, and referencing documents.

This collection contains diagnostic codes for a neoplasm.

Addendum A reflects Ambulatory Payment Classification (APC) codes and descriptions, searchable by APC range and/or status indicator.
Addenda are updated at the beginning of each quarter and are part of a quarterly Outpatient Prospective Payment System (OPPS) notification transmittal.

The Best Practices (BP) Catalog is an FinThrive proprietary database collection that provides coding and pricing recommendations for charges that typically reside in a hospital's chargemaster. It can be used as a stand-alone resource in Knowledge Source and/or in conjunction with CDM Master.
Note: BP Catalog is available when your facility has purchased it as part of their Knowledge Source contract. If you would like to learn more about getting access to BP Catalog, contact an FinThrive representative.

This collection lists individual devices and products matched with manufacturer-suggested category code assignments. Hospitals are ultimately responsible for reporting the correct category codes representing the products and devices used in their facility.
Search results include:
- Category code
- Manufacturer
- Product number and description
- APC status
- UPN
- CPT/HCPCS codes that utilize a device

This collection provides critical information about modifiers for CPT/HCPCS codes. Search results include:
- Definition
- Effective and expiration dates
- Referencing documents and notes

This collection contains comprehensive information for Medicare Severity - Diagnosis Related Groups (MS-DRG). MS-DRG is the reimbursement method for Medicare inpatient stays, whereby charges are classified into differing diagnostic groups.

This collection contains a comprehensive list of FDA-approved prescription pharmaceuticals. Search results include:
- NDC number
- Relevant HCPCS
- Labeler
- Description and formulation
- Packaging
- Dosage forms
- Routes of administration and self-administered only

This collection contains revenue codes and related information. Search results include:
- Title and category
- Description
- Effective and expired dates
- Referencing transmittals
- Abbreviations
- Helpful coding notes