Behavioral Health & Social Service Providers / 103TW0100X
Inactive · Individual · specialization · Medicare specialty 62
103TW0100X Psychotherapy Women
103TW0100X is the taxonomy code for Women, a specialization of Psychologist, in the NUCC group “Behavioral Health & Social Service Providers”. It is a code for individual providers — the kind used on a Type 1 NPI. Medicare maps it to specialty 62, Psychologist, Clinical, under which 1,025 practitioners are enrolled.
- 1Taxonomy code 103TW0100X
- 2Level Specialization
- 3Medicare specialty 62 Psychologist, Clinical
- 4Codes in this group 40
Definition
NUCC publishes no definition for 103TW0100X; the code is identified by its place in the tree below.
Where 103TW0100X sits
- Group: Behavioral Health & Social Service Providers — code 37 of 40 in the group
- Classification: Psychologist 103T00000X
- Specialization: Women 103TW0100X
Choose 103TW0100X over the general Psychologist code (103T00000X) when the provider's training or certification is specifically in women; the general code covers the classification as a whole. A provider may report more than one taxonomy code on an NPI but marks one as primary.
Medicare
CMS's taxonomy crosswalk links 103TW0100X to Medicare specialty 62 (Psychologist, Clinical). That specialty — not the taxonomy code itself — is what Medicare enrollment records and uses for payment. 1,025 practitioners are enrolled under it nationally, and 23 other taxonomy codes map to the same specialty.
Other codes under the same Medicare specialty: 103T00000X Psychologist; 103TA0400X Addiction (Substance Use Disorder) Psychologist; 103TA0700X Adult Development & Aging Psychologist; 103TB0200X Cognitive & Behavioral Psychologist; 103TC0700X Clinical Psychologist; 103TC1900X Counseling Psychologist; 103TC2200X Clinical Child & Adolescent Psychologist; 103TE1000X Psychologist; and 15 more.
Related codes
| Code | Psychologist — other specializations |
|---|---|
| 103TP2700X | Psychotherapy |
| 103TR0400X | Rehabilitation |
| 103TS0200X | School |
The nearest 3 of 21 other codes under Psychologist; all are on the group page.
History of 103TW0100X
NUCC's earliest recorded change to 103TW0100X is from 2007 (marked inactive). NUCC has marked it inactive: it should not be used for new NPIs, and existing records should move to a current code.
- 2007-01-01 — marked inactive
Similar codes in other groups
If 103TW0100X is not quite right, these codes in other groups share a word with it — often the same field practised by a different kind of provider:
- 163WW0101X Ambulatory Women's Health Care Registered Nurse (Nursing Service Providers)
- 364SW0102X Women's Health Clinical Nurse Specialist (Physician Assistants & Advanced Practice Nursing Providers)
- 363LW0102X Women's Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers)
- 282NW0100X Women's Hospital (Hospitals)
Find providers with 103TW0100X
Using 103TW0100X
The code goes in the taxonomy field of the NPI application in NPPES, and on claims where a payer asks for it — box 24J (shaded) or 33b on the CMS-1500 with the ZZ qualifier, or the PRV segment of an 837 electronic claim. Payers match it against the taxonomy on the NPI record and, for Medicare, against the specialty on the enrollment, so all three should agree. To see which code a provider uses, search their NPI in the lookup.
Sources: NUCC Health Care Provider Taxonomy code set, version 26.1 (CSV); CMS Medicare Provider and Supplier Taxonomy Crosswalk, August 2026; CMS Medicare Fee-For-Service Public Provider Enrollment, extract of 2026-09-29. Checked 2026-10-24. Methodology.