
Important CDI and Coding Updates
February 1st, 2018 - Richard Pinson, MD, FACP, CCS, and Cynthia Tang, RHIA, CCSThe following information is from BC Advantage.
COPD and Pneumonia The requirement for code J44.0 (chronic obstructive pulmonary disease with acute lower respiratory infection) to be coded first when a patient has pneumonia and COPD has been eliminated as of October 1.
The 2018 version of ICD-10-CM replaced the "use additional code" with "code also." According to OCG Section I.A.17, the Code Also note "does not provide sequencing direction. The sequencing depends on the circumstances of the encounter."
We are now back to where the selection of principal diagnosis between COPD and Pneumonia will be "determined by the circumstances of admission, diagnostic workup and/or therapy provided" pursuant to OCG Section II (Selection of Principal Diagnosis).
Type 2 MI
With
Furthermore, this situation improperly labeled patients with supply/demand mismatch (Type 2) as having acute coronary thrombosis primarily due to coronary artery disease causing significant inaccuracy with consequences for patients, clinicians, and the healthcare
Type 2 MI (whether new initial or subsequent) is assigned to one code (I21.A1). The code also includes any description of MI being due to "demand ischemia" or "ischemic imbalance". As an MCC, the diagnosis of Type 2 MI has major severity impact affecting DRG assignment and quality reporting, just like Type 1 MI.
Now that a specific code exists for Type 2 MI, a supply/demand infarction should not be documented as NSTEMI since that term is reserved for MI due to coronary artery disease requiring aggressive intervention directed at thrombosis and occlusion of a coronary artery. Type 2 is managed by treating the underlying cause.
A diagnosis of "demand ischemia" has always been problematic. It is still assigned to code I24.8, Other forms of acute ischemic heart disease (a CC). Demand ischemia is supposed to be reserved for supply/demand mismatch causing ischemia without necrosis where biomarkers remain below the 99th percentile of the upper limit of reference
Encephalopathy due to Stroke
Coding Clinic Second Quarter 2017 responded to a question regarding whether or encephalopathy would be coded separately or considered inherent to a cerebral infarction when diagnosed with encephalopathy secondary to an acute lacunar infarct.
Coding Clinic instructions were to "Assign code G93.49,
There are two distinct categories of encephalopathy: acute and chronic. Many sources confuse and confound these categories, lumping them together as one. However, the chronic encephalopathies are characterized by a chronic mental status alteration that, in most cases, is slowly progressive. They result from permanent, usually irreversible, diffuse structural changes in the brain.
The vast majority of encephalopathy cases encountered in the inpatient setting are acute. Acute encephalopathy is characterized by an acute, diffuse, functional alteration of mental status due to underlying systemic factors rather than local intracranial processes. It is reversible when these abnormalities are corrected, with a return to baseline mental status. Acute encephalopathy may be further identified as toxic, metabolic, or toxic-metabolic depending on its systemic cause.
Ordinarily, from a clinical standpoint, a mental status change associated with focal intracranial processes (like CVA) is more an alteration of consciousness and responsiveness in the spectrum of coma, obtundation, and lethargy - objectively measured using the Glasgow Coma Scale (GCS) scoring - and not an encephalopathic process.
The unsettled question remains whether "encephalopathy due to CVA" is a clinically valid diagnosis that can be compliantly coded on
Functional Quadriplegia
Although the FY 2018 Official Coding Guidelines no longer include a paragraph describing functional quadriplegia, it is still a valid diagnosis and ICD-10-CM code:
R53.2 Functional quadriplegia (MCC)
Complete immobility due to severe physical disability or frailty.
Excludes 1: Frailty (R54)
Hysterical paralysis (F44.4)
Immobility syndrome (M62.3)
Neurologic quadriplegia (G82.5-)
Quadriplegia (G82.50)
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