Important Coding Info: Risk Adjustment and Congenital Conditions

Important Coding Info: Risk Adjustment and Congenital Conditions

A listener, who is a risk adjustment program manager, asked me to elucidate when a congenital condition code is appropriate. She was most interested in the cardiac conditions in the context of pediatric patients, but I thought it would be useful to go over all the aspects.

Congenital means a patient is born with an anomaly, or abnormality. It can be a physical deformity or a genetic or chromosomal abnormality. This is in contradistinction to an acquired condition which means the patient was born intact, but something happened, either accidentally or intentionally, and there is now an abnormal condition.

A good example is Q71.21, Congenital absence of both forearm and hand, right upper limb, versus Z89.211, Acquired absence of right upper limb below elbow. The latter could be from a farming accident, for instance, or by surgical amputation for a malignancy. Additional codes might provide those etiologic details.

According to the Coding and Reporting Guidelines, similar to codes from Chapter 16, Certain Conditions Originating in the Perinatal Period (the P codes), codes from Chapter 17, Congenital malformations, deformations, and chromosomal abnormalities (Q codes), are permitted to be used throughout the life of the patient.

In the current state of technology, a patient who has Trisomy 21 will always have Trisomy 21 coded. I say, “in the current state,” because there are new gene therapies that can effectively cure a genetic disease, like cystic fibrosis or sickle cell disease, and it is not out of the realm of possibility that other genetic or even chromosomal abnormalities may be conquered in the future.

Let’s address the conditions which interested Mary, congenital heart disorders. A musculoskeletal abnormality like the one noted above may be permanent and ongoing, so it is understandable that the code applies for the patient’s entire life.  There are conditions which might be amenable to surgery, might require multiple surgeries, but even with those interventions, the condition may not be completely eliminated. For instance, hypoplastic heart syndrome (e.g., Q22.6, Hypoplastic right heart syndrome) may require multiple surgeries, and it may be alleviated, but the heart may never be rendered normal. That patient would continue to have Q22.6 for the duration of their life.

There are congenital heart defects which are diagnosed very early on, like ventricular septal defect (VSD) or patent ductus arteriosus (PDA), which may resolve spontaneously and completely without any treatment (I call that, “tincture of time”). Once the condition has resolved, the code to represent that will be found in Z87.7-, Personal history of (corrected) congenital malformations.

The parenthetical, “corrected,” is where the nuance of diagnosis and coding falls. If the VSD is large and doesn’t close on its own, surgery might be necessary to accomplish the closure. If it is successful, and the VSD no longer exists and is no longer clinically relevant, then it is “corrected.” Z87.74, Personal history of (corrected) congenital malformations of heart and circulatory system, would apply.

If, however, a congenital condition has been addressed but not “corrected,” it should still be coded as being present. Providers don’t understand the concept of “history of” as it is defined in coding. “History of” means old, resolved, no longer active, not being treated, and no longer impacting the patient, but may have the potential for recurrence or may influence the provision of future care. Maybe having that congenital issue and the surgery to correct it might portend problems in the future, like a higher likelihood of development of heart failure. That is why knowing the patient had a personal history of the condition and its repair is clinically significant, and a Z code is appropriate.

When should a coder pick up the condition? When the provider (hopefully accurately) documents that the condition is still present. If they document “history of” and it isn’t clear to the coder whether it is “chronic condition of” or “resolved historical condition of,” a query is indicated. I strongly recommend ensuring that the provider understands the “history of” concept before they respond to a query.

For risk adjustment purposes, any year when the condition still is present, the diagnosis should be documented and the code picked up. The year following successful and complete repair, the provider should document that the condition was “corrected,” and the Z code would then be applicable.

So, for instance, if a patient undergoes a successful reconstruction in February, for that entire year for risk adjustment purposes, the Q code would continue to be valid although after the recovery period is complete, the Z code demonstrating “history of” would then be appropriate for that given encounter. The following January, there would no longer be risk adjustment as only the Z code would be captured in that calendar year.

Don’t continue to pick up Q codes just because they have risk adjustment implications. You may get a financial boost at the time, but the compliance jeopardy is just not worth the risk.

Programming note:

Listen to Dr. Erica Remer as she cohosts Talk Ten Tuesday with Chuck Buck, Tuesday, 10 Eastern.

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Erica Remer, MD, FACEP, CCDS, ACPA-C

Erica Remer, MD, FACEP, CCDS, ACPA-C has a unique perspective as a practicing emergency physician for 25 years, with extensive coding, CDI, and ICD-10 expertise. As physician advisor for University Hospitals Health System in Cleveland, Ohio for four years, she trained 2,700 providers in ICD-10, closed hundreds of queries, fought numerous DRG clinical determination and medical necessity denials, and educated CDI specialists and healthcare providers with engaging, case-based presentations. She transitioned to independent consulting in July 2016. Dr. Remer is a member of the ICD10monitor editorial board and is the co-host on the popular Talk Ten Tuesdays weekly, live Internet radio broadcasts.

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