We have noticed an increase Q code denials for our clients lately. We work to make certain that the Q code met criteria for reporting if it was assigned, ensuring it has been completely corrected to assign the "history of" code. Lastly, if the Q code is assigned as the PDx, we ensure it meets the definition. For example, if a patient is admitted for acute CHF d/t worsening L>R shunt across a Ventricular Septal Defect and got IV Lasix and Enalapril added, and the VSD was not directly addressed, the CHF would be the Principal Diagnosis.

  • Assign an appropriate code(s) from categories Q00-Q99, Congenital malformations, deformations, and chromosomal abnormalities when a malformation/deformation or chromosomal abnormality is documented. A malformation/deformation/or chromosomal abnormality may be the principal/first- listed diagnosis on a record or a secondary diagnosis.
  • When a malformation/deformation or chromosomal abnormality does not have a unique code assignment, assign additional code(s) for any manifestations that may be present.
  • When the code assignment specifically identifies the malformation/deformation or chromosomal abnormality, manifestations that are an inherent component of the anomaly should not be coded separately. Additional codes should be assigned for manifestations that are not an inherent component.
  • Codes from Chapter 17 may be used throughout the life of the patient. If a congenital malformation or deformity has been corrected, a personal history code should be used to identify the history of the malformation or deformity. Although present at birth, a malformation/deformation/or chromosomal abnormality may not be identified until later in life. Whenever the condition is diagnosed by the provider, it is appropriate to assign a code from codes Q00-Q99. For the birth admission, the appropriate code from category Z38, Liveborn infants, according to place of birth and type of delivery, should be sequenced as the principal diagnosis, followed by any congenital anomaly codes, Q00- Q99.

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