is bleach episode 243 filler?

Upon seeing the baby-like creature, 7th Division Lieutenant Tetsuzaemon Iba wonders what it is, prompting 4th Division Lieutenant Isane Kotetsu to theorize it is Ashisogi Jizō. When Iba asks her how she can tell, Isane tells him to look at it and states she has never seen anything like it.

When Ashisogi Jizō makes high-pitched noises, Iba wonders if it is talking to them before saying they have a Zanpakutō Spirit before them regardless of how strange it looks. When Iba proclaims they will capture it and begins to move forward, Isane stops him by putting her hand on his shoulder and states they should not do so yet, prompting Iba to express surprise.