About the Board of Medical Specialty Coding & Compliance (BMSC)

The Board of Medical Specialty Coding & Compliance (BMSC) is the credentialing arm of the Association of Home Care Coding & Compliance (AHCC), an education and training division of DecisionHealth, LLC. Currently, BMSC offers three home health professional credentials: HCS-D, HCS-O, and HCS-H.

Home Care Coding Specialist – Diagnosis (HCS-D)

The Home Care Coding Specialist—Diagnosis (HCS-D) credential is earned by professionals skilled in classifying medical data from home health patient records. Coding specialists review patients' records and assign numeric codes for each diagnosis. Successful HCS-D candidates will possess expertise in the application of ICD-10-CM conventions and guidelines and should be knowledgeable in medical terminology, anatomy/physiology, disease processes, pathophysiology, and pharmacology.

HCS-D certified coders are considered leaders in the industry because they:

  • Collect patient documentation
  • Assign accurate diagnosis codes
  • Collaborate with clinicians, physicians and/or managers/administrators
  • Ensure that all activities are done in a legal and ethical manner that supports home health agency policy, regulatory and professional guidelines


Home Care Coding Specialist – Hospice (HCS-H)

The Home Care Coding Specialist-Hospice (HCS-H) credential is earned by professionals skilled in classifying medical data from hospice patient records. Coding specialists review patients' records and assign numeric codes for each diagnosis. Successful HCS-H candidates will possess expertise in the application of ICD-10-CM conventions and guidelines and should be knowledgeable in medical terminology, anatomy/physiology, disease processes, pathophysiology, and pharmacology.

HCS-H certified coders are considered leaders in the industry because they:

  • Collect patient documentation
  • Assign accurate diagnosis codes
  • Collaborate with clinicians, physicians and/or managers/administrators
  • Ensure that all activities are done in a legal and ethical manner that supports hospice agency policy, regulatory and professional guidelines


Home Care Clinical Specialist – OASIS (HCS-O)

The Home Care Clinical Specialist – OASIS (HCS-O) certification is held by clinicians who have demonstrated the clinical skills and judgment necessary to assess a patient’s condition correctly. HCS-O credential holders are healthcare professionals with specialized knowledge in applying clinical assessment findings to OASIS items. HCS-O credential holders include Registered Nurses, Physical Therapists, Occupational Therapists, Speech Language Pathologists, Coding Specialists, Billing Specialists, Compliance Directors, Quality Assurance Directors, Administrators, and Agency Directors. Although these individuals perform different jobs, the role of ensuring the accuracy of OASIS data is the same for all of them. To effectively ensure the accuracy of OASIS data, they must understand and apply the instructions contained in the OASIS Guidance Manual, category-specific questions and answers, and quarterly updates provided by the Centers for Medicare and Medicaid Services (CMS).

Clinicians with an HCS-O credential know how to:

  • Gather patient clinical documentation
  • Validate the accuracy of OASIS responses
  • Correct OASIS response errors according to OASIS guidance and documentation standards
  • Ensure that all activities are done in a legal and ethical manner that supports agency policy and regulatory and professional guidelines

Frequently Asked Questions

Q: What are the benefits to earning a BMSC credential?
A: Earning a BMSC credential can help you identify yourself as a leader and gain respect in your home care coding or clinical profession. Advanced certification also often produces higher salaries for medical coders and can help you work more effectively within your industry. Plus, the purchase of a BMSC exam includes a one year complimentary AHCC membership! To learn more about the AHCC Membership, please click here.

Q: How do I know if I’m qualified to take one of the credential exams?
A: Learn more about each credential and its qualifications in our BMSC Candidate Handbook.

Q: How should I prepare for the exam?
A: The most successful credential candidates have on-the-job experience, have attended coding or OASIS training events, and have followed a course of self-study. See the 2022 Candidate Handbook for more detail about the eligibility and qualifications we recommend for each BMSC exam.

We also recommend the study guides on the Study Materials tab to help you prepare for your respective exam(s).

For more information, please refer to the FAQ section on the AHCC website

BMSC Certification Exams

Product Code: DHBMSCHCS

Ready to advance your career? Become BMSC-certified today!

Credentials are earned by taking an examination that tests a candidate's knowledge of the subject matter, as well as his or her ability to accurately apply the knowledge in a workplace setting.

Learn more about each credential and its qualifications in our BMSC Candidate Handbook.


BMSC Certification Exams