Some clinicians add a Stage 6 (not part of the original Tanner scale) to describe hair that extends in a diamond or triangular pattern up toward the umbilicus (navel). This is common in some populations but is not considered a separate maturity stage.
If you meant this as a for a medical or educational app (e.g., adding a visual guide or checklist), please clarify the platform or use case. Otherwise, the above is the standard medical staging. pubic hair development stages