In a certain code language, each letter of a word is replaced by another letter following a specific pattern. For example, 'BADAM' is coded as 'ABCBD' and 'SEED' is coded as 'EFFC'. Using the same pattern, what is the code for 'BASED'?

Let's extract the direct mapping structure by observing the pairs provided:
From $\text{’BADAM’}\to \text{’ABCBD’}$ and $\text{’SEED’}\to \text{’EFFC’}$.
Notice the letter matching maps directly:

* $\text{B}\to \text{A}$
* $\text{A}\to \text{B}$
* $\text{D}\to \text{C}$
* $\text{M}\to \text{D}$
* $\text{S}\to \text{E}$
* $\text{E}\to \text{F}$

Now, let's assemble the code for the target word $\text{’BASED’}$ using these specific mapped letter substitutions:

* $\text{B}\to \text{A}$
* $\text{A}\to \text{B}$
* $\text{S}\to \text{E}$
* $\text{E}\to \text{F}$
* $\text{D}\to \text{C}$

Putting them together, the code for $\text{’BASED’}$ is $\text{ABEFC}$.