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Table of Contents: 2025 SEPTEMBER - OCTOBER No. 466

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RxNorm September 2025 Monthly Release

RxNorm September 2025 Monthly Release. NLM Tech Bull. 2025 Sep-Oct;(466):b2.

2025 September 02 [posted]

The RxNorm September 2025 monthly release will be available on September 2, 2025.

New Qualitative Distinction: Home Admin

We have added a new Qualitative Distinction: Home Admin. It is applied to the Flumist 2025-2026 vaccine to differentiate between the version administered in a clinician setting and the self-administration version. For example:

RXCUI SBD SY

2720402

influenza A virus A/Norway/31694/2022 (H1N1) antigen 158000000 UNT/ML / influenza A virus A/Perth/722/2024 (H3N2) antigen 158000000 UNT/ML / influenza B virus B/Austria/1359417/2021 antigen 158000000 UNT/ML Nasal Spray [FluMist 2025-2026]

FluMist 2025-2026 Formula Nasal Spray

2720400

Home Admin influenza A virus A/Norway/31694/2022 (H1N1) antigen 158000000 UNT/ML / influenza A virus A/Perth/722/2024 (H3N2) antigen 158000000 UNT/ML / influenza B virus B/Austria/1359417/2021 antigen 158000000 UNT/ML Nasal Spray [FluMist 2025-2026]

FluMist 2025-2026 Formula Nasal Spray (Home Administration)

For more information about Qualitative Distinctions, see the RxNorm Technical Documentation.

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Last updated: 02 September 2025

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