Supervision of other normal pregnancy (z348)means supervision of pregnancy other than the first pregnancy
Supervision of normal pregnancy(Z349), means unknown if first or not
The Guidelines I.A.9.a. says "other codes are for use when the information in the medical record provides detail for which a specific code does not exist." In other words using the "8" the coders has more information than the code provides.b. "Codes titled unspecified are for use when the information in the medical record is insufficient to assign a more specific code." In other words the coder has less information than a different code provides, thus use "9 for unspecified."