EXAMPLE:
Hemiplegia; Late effect of Poliomyelitis
342.9 138
b. Etiology with manifestation(s).
EXAMPLE:
DIAGNOSIS: Cataract, Diabetic.
Diabetes
Cataract
25.5[36641]
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
reaction.
DIAGNOSIS: Gastritis, secondary to prescribed dosage of aspirin.
EXAMPLE:
Gastritis, secondary to aspirin
535.4 E935.3
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.
EXAMPLE:
DIAGNOSIS: Postoperative thrombophlebitis femoral vein,
following hysterectomy
997.2 451.11
Thrombophlebitis
during or resulting from a procedure NEC
997.2
femoral
451.11
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).
MD0753
A-6