Army · MOS history

91C5 Practical Nurse

MOS 91C5 (Practical Nurse) converted to two listed successor specialties: 91W (Health Care Specialist) and 91Z (Chief Medical NCO).

Codes named in this history

Listed in today's directory

These codes have directory pages; their current use has not been reviewed, so no current claim is made here.

Historical steps

The source names a code the branch later retired, or whose reviewed record is historical. Its story continues on that code's own page.

Documented history

Practical Nurse

The conversion took effect on October 1, 2001. The source's 2025 publication date is not the conversion date.

  • The listing does not state the conditions determining whether someone moved to 91W or 91Z.
Source extraction notes

DA Pam 611-21 Table 10-4 maps predecessor MOSC 91C5 to 91W, 91Z; source successor entries: 91W HEALTH CARE SPECIALIST; 91Z CHIEF MEDICAL NCO; conversion effective 01 Oct 2001.

Source documents (1)

Reviewed September 23, 2026 against references 1 and 2.

Historical information is drawn from the sources linked above. Classification dates are not personal service dates. Spot an error? Let us know.