Official Medical Billing and Coding Resources

What this hub is for

This page tells you where authoritative information lives and how to tell an official source from a study aid, a professional community, or a commercial product. Every "verify with the official source" instruction elsewhere in this resource points here for a concrete destination. Each entry records what you should verify there, what it does not control, and whether any relationship exists. This hub never invents links, never presents a secondary resource as official, and never ranks or recommends commercial products; it lists them factually so you can decide.

It is written for the Certification Candidate deciding what to trust before paying, the Returning Learner checking what changed and where to recheck it, the Working Professional refreshing a concept, and the Career Changer researching the field. It also serves any reader who followed a verification pointer from another page.

Because official pages can move, confirm every address on the organization's official site before acting. Each entry links to the organization's official website; always verify the current page there.

How to read every entry: the five resource classes

Each entry below is assigned exactly one class. Knowing the class tells you how much authority the source has.

Text alternative: five classes rank how much a source controls facts. Official reference controls its own scope. Educational and study resources explain or support but do not control. Professional resources are authoritative only for their own documents. Paid resources vary, and their cost is disclosed.

One organization can appear in more than one class. A publisher's free information page and its licensed code set get two separate entries; an issuing organization's continuing-education requirements page and its paid programs get two separate entries. No single entry ever carries two classes.

Verify Before You Pay

Verify Before You Pay: Before registering or buying, confirm the current credential name, issuing organization, official portal, fees, and policies on the issuing organization's official site.

Before you pay for exam registration, membership, study materials, code books, renewal, or continuing education, confirm all of the following on the organization's own official pages:

• The credential's current name and its issuing organization.
• That you are on the organization's official registration portal, not a look-alike site.
• Current eligibility, exam delivery options, allowed references and editions, retake policy, renewal cycle, and continuing-education requirements.
• Whether any purchase is actually required. A course, membership, or study product is not a requirement unless the issuing organization says so — verify that link directly.
• Keep your own record of what you verified and the date you verified it.

This block states no fees, dates, or rules on purpose; those are exactly the details that change and must be read from the official source at the moment you act.

1. Credentialing organizations

For each credential this resource reviews, the issuing organization is the only source of record for that credential's requirements. Confirm the current official organization name for each credential; issuers and credential names can change.

AAPC — Certified Professional Coder (CPC) credential and policy pages

• Resource class: Official reference
• Purpose label: Use for official credential verification
• Official link: official website — always confirm current details there.
• Access type: open web (some tools or portals may require a free account — verify)
• Cost model: free to read; exam, membership, and materials are separate purchases
• Relationship disclosure: None.
• Verify here: current credential name and issuing organization; eligibility; exam-content outline areas; exam delivery and allowed references; retake policy; renewal cycle and continuing-education requirements; code of conduct; trademark-use rules.
• Does not control: payer policy; employer hiring requirements; other organizations' credentials; the CPT code set itself (see category 2).
• Freshness: periodically updated.
• Verify Before You Pay: confirm current credential name, issuing organization, official portal, fees, and policies on the official site before registering.

AHIMA — Certified Coding Associate (CCA) credential and policy pages

• Resource class: Official reference
• Purpose label: Use for official credential verification
• Official link: official website — always confirm current details there.
• Access type: open web (some tools or portals may require a free account — verify)
• Cost model: free to read; exam, membership, and materials are separate purchases
• Relationship disclosure: None.
• Verify here: current credential name and issuing organization; eligibility; exam-content outline areas; exam delivery and allowed references; retake policy; renewal cycle and continuing-education requirements; code of ethics; trademark-use rules.
• Does not control: payer policy; employer hiring requirements; other organizations' credentials; the code sets themselves.
• Freshness: periodically updated.
• Verify Before You Pay: confirm current credential name, issuing organization, official portal, fees, and policies on the official site before registering.

National Healthcareer Association (NHA) — Certified Billing and Coding Specialist (CBCS) credential and policy pages

• Resource class: Official reference
• Purpose label: Use for official credential verification
• Official link: official website) — always confirm current details there.
• Access type: open web (some tools or portals may require a free account — verify)
• Cost model: free to read; exam and materials are separate purchases
• Relationship disclosure: None.
• Verify here: current credential name and issuing organization; eligibility; exam-content outline areas; exam delivery and allowed references; retake policy; renewal cycle and continuing-education requirements; code of conduct; trademark-use rules.
• Does not control: payer policy; employer hiring requirements; other organizations' credentials; the code sets themselves.
• Freshness: periodically updated.
• Verify Before You Pay: confirm current credential name, issuing organization, official portal, fees, and policies on the official site before registering.

2. Code sets and official guidelines

Two systems own most of the facts here: government agencies for the diagnosis and procedure/supply code sets, and the American Medical Association for CPT. Do not treat any secondary summary as the code set or the guidelines.

CDC / National Center for Health Statistics (NCHS) — ICD-10-CM Official Guidelines for Coding and Reporting and code files

• Resource class: Official reference
• Purpose label: Use for code-set and guideline verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: the current ICD-10-CM Official Guidelines for Coding and Reporting, effective dates, and the diagnosis code files jointly maintained with the Centers for Medicare & Medicaid Services (CMS).
• Does not control: procedure/service coding (CPT or ICD-10-PCS); payer coverage; the licensed CPT code set.
• Freshness: periodically updated (the code set updates each October 1).

Centers for Medicare & Medicaid Services (CMS) — ICD-10 files and ICD-10-PCS (inpatient procedure) files

• Resource class: Official reference
• Purpose label: Use for code-set and guideline verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: current ICD-10 update pages, effective dates, and the ICD-10-PCS files and guidelines used for hospital inpatient facility procedure reporting.
• Does not control: professional-service coding (CPT); diagnosis guideline authorship (shared with CDC/NCHS); payer coverage.
• Freshness: periodically updated (annual October 1 update).

Centers for Medicare & Medicaid Services (CMS) — HCPCS Level II files and update notices

• Resource class: Official reference
• Purpose label: Use for code-set and guideline verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: the current HCPCS Level II code files, quarterly and annual update notices, and effective dates.
• Does not control: CPT (HCPCS Level I); payer coverage or payment amounts; employer policy.
• Freshness: periodically updated (updated on a published schedule).

American Medical Association (AMA) — CPT information page

• Resource class: Official reference
• Purpose label: Use for code-set and guideline verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free to read (the code set itself is a separate licensed product — see the next entry)
• Relationship disclosure: None.
• Verify here: the AMA's official statements about the CPT code set, what CPT covers, editorial process, and how to obtain the licensed reference.
• Does not control: diagnosis coding (ICD-10-CM); inpatient facility procedure coding (ICD-10-PCS); payer policy.
• Freshness: periodically updated.

American Medical Association (AMA) — licensed CPT code set

• Resource class: Paid or membership resource
• Purpose label: Use for code-set and guideline verification
• Official link: official website — always confirm current details there.
• Access type: licensed purchase
• Cost model: purchase (no price stated here — verify current pricing and editions on the official source)
• Relationship disclosure: None.
• Verify here: the current licensed edition, its effective year, and licensing terms. The licensed code set is authoritative for its own content; this resource reproduces no CPT descriptors and teaches CPT conceptually only.
• Does not control: which edition your employer or an exam requires (verify separately); payer policy.
• Freshness: periodically updated (annual editions).
• Verify Before You Pay: confirm the current edition, effective year, and licensing terms on the official source before purchasing.

Centers for Medicare & Medicaid Services (CMS) — National Correct Coding Initiative (NCCI) pages

• Resource class: Official reference
• Purpose label: Use for code-set and guideline verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: the current NCCI edits, policy manual, and effective dates for the federal coding-edit program.
• Does not control: commercial-payer edit policies (verify with each payer); the code sets themselves.
• Freshness: periodically updated.

3. Privacy and compliance

These sources explain the rules and expectations behind privacy and program-integrity concepts. They are for awareness; your employer's policy and qualified counsel control real situations.

HHS Office for Civil Rights (OCR) — HIPAA materials

• Resource class: Official reference
• Purpose label: Use for privacy and compliance concepts
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: current Health Insurance Portability and Accountability Act (HIPAA) Privacy, Security, and Breach Notification guidance and enforcement materials from the U.S. Department of Health and Human Services (HHS) Office for Civil Rights.
• Does not control: your employer's specific policies and workforce training; legal advice for a situation.
• Freshness: periodically updated.

HHS Office of Inspector General (OIG) — compliance and fraud, waste, and abuse (FWA) materials

• Resource class: Official reference
• Purpose label: Use for FWA concepts
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: the Office of Inspector General's compliance program guidance and its educational materials on fraud, waste, and abuse.
• Does not control: your employer's compliance program; legal advice; payer policy.
• Freshness: periodically updated.

Centers for Medicare & Medicaid Services (CMS) — fraud, waste, and abuse (FWA) educational materials

• Resource class: Educational resource
• Purpose label: Use for FWA concepts
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: CMS educational materials that explain fraud, waste, and abuse concepts and program-integrity expectations. These explain; they do not replace your employer's compliance program.
• Does not control: your employer's policy; legal advice; enforcement decisions.
• Freshness: periodically updated.

4. Federal program and reimbursement concepts

Listed for verification of concepts only. Payer policy is verified with each payer, every time.

Centers for Medicare & Medicaid Services (CMS) — program rules and coverage determinations

• Resource class: Official reference
• Purpose label: Use for federal program concepts
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: how federal program rules, National Coverage Determinations, and Local Coverage Determinations are published, so you can recognize the concept when a page references it.
• Does not control: commercial-payer coverage or payment; your specific claim's outcome. Payer policy is confirmed with each payer.
• Freshness: context-dependent (a determination applies within its stated program and scope).

5. Career research

Use official data for labor questions and government consumer-protection material for scam awareness. Professional-organization career pages are community guidance, not labor authorities.

U.S. Bureau of Labor Statistics (BLS) — occupational and wage data

• Resource class: Official reference
• Purpose label: Use for career research data
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: the current occupational outlook and wage data. When you cite it, record the exact series or publication, the geographic area, and the release date; national figures are not local figures.
• Does not control: what a specific employer pays; hiring decisions; future outcomes.
• Freshness: periodically updated (data is released on a published schedule).

Federal consumer-protection agency — employment and job-scam awareness

• Resource class: Official reference
• Purpose label: Use for scam awareness
• Official link: see the organization's official website — confirm current details there.
• Access type: open web
• Cost model: free
• Relationship disclosure: None.
• Verify here: the specific federal consumer-protection agency and page that publishes current guidance on recognizing and reporting employment and work-from-home job scams. Confirm the exact agency and official page on the official site.
• Does not control: whether a particular job posting is legitimate; hiring decisions.
• Freshness: periodically updated.

Professional organizations (AAPC, AHIMA) — career pages

• Resource class: Professional resource
• Purpose label: Use for career research data
• Official link: see the organization's official website — confirm current details there.
• Access type: open web (some content may require membership — verify)
• Cost model: free to read; some resources may require membership
• Relationship disclosure: None.
• Verify here: each organization's own career guidance and its statements about its own credentials. These are authoritative for their own documents only.
• Does not control: labor statistics (use BLS); employer hiring; salary outcomes.
• Freshness: periodically updated.

6. Study planning and this resource's own tools

These are this resource's own study aids. They support learning; they are never authoritative for a fact, and they carry no continuing-education credit.

This resource — free coding foundation lessons

• Resource class: Study tool
• Purpose label: Use for study planning
• Official link: part of this website (see the site navigation).
• Access type: open web
• Cost model: free
• Relationship disclosure: None (this resource's own material).
• Verify here: nothing external; the lessons explain concepts and point every change-sensitive fact to the official sources above.
• Does not control: any official fact; certification requirements; payer or employer policy.
• Freshness: stable (as educational explanation; specifics are pointed to official sources).

This resource — practice sets and worksheets

• Resource class: Study tool
• Purpose label: Use for study planning
• Official link: part of this website (see the site navigation).
• Access type: open web
• Cost model: free
• Relationship disclosure: None (this resource's own material).
• Verify here: nothing external. Practice content is original educational material, not official exam content, and uses no real codes, rules, or payer policies.
• Does not control: exam readiness or job readiness; any official fact.
• Freshness: stable (as educational practice).

This resource — glossary

• Resource class: Study tool
• Purpose label: Use for terminology
• Official link: part of this website (see the site navigation).
• Access type: open web
• Cost model: free
• Relationship disclosure: None (this resource's own material).
• Verify here: nothing external; definitions are educational and general, and meaning may vary by payer, employer, setting, or code year.
• Does not control: any official definition; code-set content; payer or employer usage.
• Freshness: stable (as educational explanation).

7. Professional associations and communities

Professional organizations offer chapters, events, and ethics codes. Their documents are authoritative for themselves; community discussion is never a source for facts.

AAPC — chapters, events, and code of ethics

• Resource class: Professional resource
• Purpose label: Use for professional community
• Official link: official website — always confirm current details there.
• Access type: open web (some community features may require membership — verify)
• Cost model: free to read; membership is a separate purchase
• Relationship disclosure: None.
• Verify here: the organization's own chapters, events, and code of ethics as published documents.
• Does not control: coding facts settled by a code set or official guidelines; payer or employer policy. Forum and community discussion is not a source.
• Freshness: periodically updated.

AHIMA — communities, events, and code of ethics

• Resource class: Professional resource
• Purpose label: Use for professional community
• Official link: official website — always confirm current details there.
• Access type: open web (some community features may require membership — verify)
• Cost model: free to read; membership is a separate purchase
• Relationship disclosure: None.
• Verify here: the organization's own communities, events, and code of ethics as published documents.
• Does not control: coding facts settled by a code set or official guidelines; payer or employer policy. Community discussion is not a source.
• Freshness: periodically updated.

8. Continuing-learning resources

This resource provides continuing learning and refreshers only. It grants no continuing-education (CE) or continuing-education-unit (CEU) credit, no accredited training, and no credential-renewal credit. Where an issuing organization publishes both a requirements page and paid programs, each gets its own entry: the requirements page is an Official reference; the programs are a Paid or membership resource.

AAPC — continuing-education requirements page

• Resource class: Official reference
• Purpose label: Use for official credential verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free to read
• Relationship disclosure: None.
• Verify here: the current continuing-education requirements, renewal cycle, and what counts toward renewal for the organization's credentials.
• Does not control: what any third party's course counts for (the issuer decides); employer training requirements.
• Freshness: periodically updated.

AAPC — continuing-education programs

• Resource class: Paid or membership resource
• Purpose label: Use for study planning
• Official link: official website — always confirm current details there.
• Access type: account required; some content membership required
• Cost model: purchase or membership (no price stated here — verify)
• Relationship disclosure: None.
• Verify here: whether a specific program counts toward this organization's renewal, and its current terms. A program is not a requirement unless the issuer says so.
• Does not control: another organization's renewal; employer training requirements.
• Freshness: periodically updated.
• Verify Before You Pay: confirm that the program counts toward your specific renewal, and its current terms, on the official site before purchasing.

AHIMA — continuing-education requirements page

• Resource class: Official reference
• Purpose label: Use for official credential verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free to read
• Relationship disclosure: None.
• Verify here: the current continuing-education requirements, renewal cycle, and what counts toward renewal for the organization's credentials.
• Does not control: what any third party's course counts for; employer training requirements.
• Freshness: periodically updated.

AHIMA — continuing-education programs

• Resource class: Paid or membership resource
• Purpose label: Use for study planning
• Official link: official website — always confirm current details there.
• Access type: account required; some content membership required
• Cost model: purchase or membership (no price stated here — verify)
• Relationship disclosure: None.
• Verify here: whether a specific program counts toward this organization's renewal, and its current terms.
• Does not control: another organization's renewal; employer training requirements.
• Freshness: periodically updated.
• Verify Before You Pay: confirm that the program counts toward your specific renewal, and its current terms, on the official site before purchasing.

National Healthcareer Association (NHA) — continuing-education / recertification requirements page

• Resource class: Official reference
• Purpose label: Use for official credential verification
• Official link: official website — always confirm current details there.
• Access type: open web
• Cost model: free to read
• Relationship disclosure: None.
• Verify here: the current continuing-education or recertification requirements and renewal cycle for the organization's credentials.
• Does not control: what any third party's course counts for; employer training requirements.
• Freshness: periodically updated.

National Healthcareer Association (NHA) — continuing-education / recertification programs

• Resource class: Paid or membership resource
• Purpose label: Use for study planning
• Official link: official website — always confirm current details there.
• Access type: account required
• Cost model: purchase (no price stated here — verify)
• Relationship disclosure: None.
• Verify here: whether a specific program satisfies this organization's recertification, and its current terms.
• Does not control: another organization's renewal; employer training requirements.
• Freshness: periodically updated.
• Verify Before You Pay: confirm that the program satisfies your specific recertification, and its current terms, on the official site before purchasing.

Check the source yourself: classifying any resource

When you find a resource that is not listed here, classify it before you rely on it. Ask the same questions the Source Verification Standards use:

• Who published it? Is that publisher the authority for this kind of fact, or someone summarizing the authority?
• When was it published or last updated? Could the fact have changed since then?
• Does it state the rule, or summarize it? A summary is a starting point; the official source settles the question.
• Does context change the answer? Payer, employer, setting, and code year can each change what is "correct."

Then place it in one of the five classes above. Official reference controls its own scope. Educational and study resources explain or support but never settle a fact. Professional resources are authoritative only for their own documents. Paid resources vary, and cost should be disclosed. Each entry on this page carries a freshness label — stable, periodically updated, or context-dependent — so you know how often to recheck it.

Source Challenge: a credential-fee question

Suppose you want to know the current fee to sit for a coding credential, and you find four sources. Which one settles it?

Text alternative: only the issuing organization's official registration page settles the current fee. A dated blog, a forum thread, and a seller's page can each be wrong or outdated; use them only as reminders to verify with the official source.

Frequently asked questions

• Where do I verify certification requirements? On the issuing organization's official credential and policy pages (category 1). Confirm the current credential name and issuing organization first.
• Where are the official ICD-10-CM guidelines? In the ICD-10-CM Official Guidelines for Coding and Reporting from CDC/NCHS, with code files jointly maintained with CMS (category 2).
• Is the official site free? It depends on the source. Access type and cost model vary by entry — some pages are free to read while the code set or a program is a licensed purchase. Verify the current access and cost on the official source.
• Are any of these listings endorsements? No. Listings are for reference and verification only. This resource is not affiliated with, endorsed by, sponsored by, or approved by any listed organization, and it uses names for identification only.