Hemiplegia; Late effect of Poliomyelitis
b. Etiology with manifestation(s).
DIAGNOSIS: Cataract, Diabetic.
Sequence first the code which identifies the manifestation or the nature of the adverse
reaction. An additional code must be used to identify the drug causing the adverse
DIAGNOSIS: Gastritis, secondary to prescribed dosage of aspirin.
Gastritis, secondary to aspirin
3. Use the multiple coding principle for any other conditions in the main classification
that can be more completely identified by the use of more than one code.
DIAGNOSIS: Postoperative thrombophlebitis femoral vein,
during or resulting from a procedure NEC
1. Two conditions or a specific diagnosis with an associated secondary process or
complication are frequently assigned to the same code. This is referred to as a
combination code. Where the coding books provide a single code to fully identify all the
conditions described in the diagnostic statement, the one code is sufficient.
2. The combination code may not be so stated in the RUBRIC (Category) title, but may
have its own fourth-digit (subcategory) title to identify both disease conditions.
EXCEPTION: Where specific instructions in this user's manual direct other -wise; for
example, see principle XII (Drug and Alcohol).