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Taxonomy Codes Updates Effective October 1, 2025

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Note: Texas Medicaid managed care organizations (MCOs) must provide all medically necessary, Medicaid-covered services to Medicaid members who are enrolled in their MCO. Administrative procedures, such as prior authorization, precertification, referrals, and claims and encounter data filing, may differ from traditional Medicaid (fee-for-service) and from MCO to MCO. Providers should contact the member’s specific MCO for details.

Effective October 1, 2025, the Texas Medicaid & Healthcare Partnership (TMHP) will add a new taxonomy code and update the definition of an existing taxonomy code as follows:

  • Pain management (New taxonomy code)
  • Orthopedic (Definition update only)

The updates will apply to Texas Medicaid and the Children with Special Health Care Needs (CSHCN) Services Program.

New Taxonomy Code

TMHP will add new taxonomy code 1835P1400X.

Provider TypeTaxonomy Code and Definition
Pharmacy service providers; pharmacist; pain management“1835P1400X—A licensed pharmacist who has demonstrated specialized knowledge and skills, providing integrated, comprehensive, and accessible healthcare services to patients experiencing pain and associated symptoms.”

Taxonomy Code Definition Change

TMHP will update the definition of taxonomy code 111NX0800X.

Provider TypeTaxonomy Code and Definition
Chiropractic providers; 
chiropractor; orthopedic

“111NX0800X—

Chiropractic Orthopedics/Neuromusculoskeletal Medicine is defined as that branch of chiropractic medicine that includes the continued acquisition of knowledge relative to both normal functions and diseases of the human body as they relate to the bones, joints, capsules, discs, muscles, ligaments, tendons, their complete neurological and vascular components, referred organ systems, and contiguous tissues. This also includes the development and perfection of skills relative to health maintenance when such exists and when not, the investigations, historical review, physical detection, correlative diagnosis development and complete management of any disorder within the bounds defined herein. Also necessary is the delivery of the combined knowledge and skill on a primary basis to patients who both need and desire this service to the eventual outcome of remissions, whenever resolution is not readily achievable. In addition, the certified chiropractic orthopedist/neuromusculoskeletal medicine specialist provides consultation services at the request of other qualified doctors seeking assistance in the care of their patients. The chiropractic orthopedist/neuromusculoskeletal medicine specialist may also engage in the teaching and research of subjects and materials relevant to pursuing the quest for knowledge in the ever-changing field of the orthopedic specialty.”

Providers can refer to the Washington Publishing Company website for complete descriptions of the taxonomy codes.

For more information, call the TMHP Contact Center at 800-925-9126 or the TMHP-CSHCN Services Program Contact Center at 800-568-2413.