PMBAUSA
The world has moved. The United States is still deciding. The professionals who study ICD-11 today will lead the transition tomorrow.
Where Does the United States Stand Today?
The World Health Organization (WHO) adopted ICD-11 in 2019, and it became effective globally on January 1, 2022. However, the United States has not implemented ICD-11 for morbidity coding, billing, or claims. US healthcare continues to operate on ICD-10-CM and ICD-10-PCS, which remain the HIPAA-mandated code sets.
What is happening instead is structured evaluation. The National Committee on Vital and Health Statistics (NCVHS), the federal advisory body to HHS, established a dedicated ICD-11 Workgroup in December 2022 to research transition pathways, issue Requests for Information (RFIs), and develop recommendations on whether the US should adopt ICD-11 directly or build a clinical modification (a potential “ICD-11-CM”). The CDC/NCHS issued RFIs in 2023, and stakeholders such as the American Hospital Association (AHA) submitted formal responses in January 2024 supporting the exploration while urging side-by-side ICD-10 vs. ICD-11 dual-coding analyses before any final recommendation. No implementation date has been announced.
WHO adopts ICD-11
2019
ICD-11 effective worldwide
Jan 2022
NCVHS forms ICD-11 Workgroup
Dec 2022
RFIs, roundtables, AHA/industry input
2023-24
US decision & implementation
TBD
What Makes ICD-11 Different from ICD-10-CM?
ICD-11 is not a simple renumbering — it is a digital-first, dynamically structured classification. It introduces stem codes, extension codes, and cluster coding (linking codes together to describe one clinical concept), plus dedicated content for traditional medicine, sleep-wake disorders, sexual health, and gaming disorder. Its alphanumeric structure (e.g., 1A00–ZZ9Z) and API-driven browser fundamentally change how coders will search, validate, and assign codes.
Feature
ICD-10-CM (Current US Standard)
ICD-11 (WHO Global Standard)
US legal status
HIPAA-mandated code set
Not adopted; under federal evaluation
Code format
A00.0-style, 3–7 characters
Alphanumeric stem codes, e.g., 1A00, with extension codes
Combination logic
Combination codes, 7th characters
Cluster coding / post-coordination
Platform
Static annual releases
Digital-first, API and online coding tool
New clinical content
Limited additions annually
Immunology, sleep-wake, traditional medicine, gaming disorder
Why Should the US Workforce Prepare Before a Mandate?
The ICD-9 to ICD-10 transition took the US industry years of costly, compressed preparation — and NCVHS has explicitly stated it wants to avoid repeating that experience. That means early education is not premature; it is exactly what federal advisors are encouraging. Coders, auditors, CDI specialists, HIM leaders, and educators who understand ICD-11 architecture before a rule is issued will be the trainers, transition leads, and dual-coding analysts every organization needs. Global employers in the GCC, Europe, and WHO-aligned health systems are already using ICD-11 — making this knowledge internationally portable today.
Prepare with the CMC-ICD-11™ Credential
The CMC-ICD-11™ is a professional, voluntary credential from PMBAUSA LLC designed to build genuine ICD-11 competency — classification architecture, cluster coding, ICD-10-to-ICD-11 mapping logic, and transition readiness — through clinical reasoning, not memorization.
Explore CMC-ICD-11™ Certification
References
1. NCVHS ICD-11 Workgroup Project Scope (Dec 2022): ncvhs.hhs.gov/wp-content/uploads/2022/12/NCVHS-ICD-11-Project-Scope-December-15-2022-508.pdf
2. NCVHS ICD-11 Policy Workgroup Update (Nov 2023): ncvhs.hhs.gov (Workgroup presentation PDF)
3. AHA Response to CDC RFI on ICD-11 Morbidity Coding (Jan 2024): aha.org/lettercomment/2024-01-12-aha-responds-cdc-rfi-icd-11-morbidity-coding-use
4. WHO ICD-11 Official Portal: icd.who.int/en