diff --git a/Doc/library/decimal.rst b/Doc/library/decimal.rst
index 4eba768..7e14486 100644
--- a/Doc/library/decimal.rst
+++ b/Doc/library/decimal.rst
@@ -324,6 +324,11 @@
       numeric-value  ::=  decimal-part [exponent-part] | infinity
       numeric-string ::=  [sign] numeric-value | [sign] nan
 
+   Other Unicode decimal digits are also permitted where ``digit``
+   appears above.  These include decimal digits from various other
+   alphabets (for example, Arabic-Indic and Devanāgarī digits) along
+   with the fullwidth digits ``'\uff10'`` through ``'\uff19'``.
+
    If *value* is a :class:`tuple`, it should have three components, a sign
    (:const:`0` for positive or :const:`1` for negative), a :class:`tuple` of
    digits, and an integer exponent. For example, ``Decimal((0, (1, 4, 1, 4), -3))``