Pass the AHIMA Documentation Integrity Practitioner (CDI) CDIP Questions and answers with ValidTests

The proper sequencing of the principal and secondary diagnoses in this case is as follows:

Principal diagnosis: Acute appendicitis. This is the condition, after study, that occasioned the admission to the hospital, according to the ICD-10-CM Official Guidelines for Coding and Reporting. The patient was admitted for laparoscopic surgery, which is a definitive treatment for acute appendicitis. The physician documented “possible acute appendicitis or probable Meckel diverticulitis” as the cause of the right lower quadrant abdominal pain. According to the AHA’s Coding Clinic, Fourth Quarter 2016, pp. 147-148, when a physician documents two diagnoses connected by “or”, coders should query the physician for clarification if possible. However, if a query is not possible or not answered, coders should assign codes for both conditions, unless one of them has been ruled out or confirmed by further testing or treatment. In this case, there is no indication that either acute appendicitis or Meckel diverticulitis has been ruled out or confirmed by further testing or treatment. Therefore, both conditions should be coded and reported. However, only one of them can be the principal diagnosis. Since acute appendicitis is more commonly associated with laparoscopic surgery than Meckel diverticulitis, and since it has a higher relative weight than Meckel diverticulitis under the MS-DRG system, it is reasonable to select acute appendicitis as the principal diagnosis 23.

Secondary diagnosis: Right lower quadrant abdominal pain. This is a sign or symptom that is associated with the principal diagnosis and requires clinical evaluation, therapeutic treatment, diagnostic procedures, extended length of hospital stay, or increased nursing care and/or monitoring. The patient presented with right lower quadrant abdominal pain as a manifestation of acute appendicitis or Meckel diverticulitis. The pain required clinical evaluation by abdominal ultrasound and therapeutic treatment by laparoscopic surgery. Therefore, it should be coded and reported as a secondary diagnosis 4.

Secondary diagnosis: Type I diabetes mellitus. This is a chronic condition that affects the patient’s care in terms of requiring diagnostic or therapeutic services or affecting patient outcomes or resource utilization. The patient has a history of type I diabetes mellitus and received an injection of neutral protamine Hagedorn insulin to normalize the blood sugar level prior to surgery. Therefore, it should be coded and reported as a secondary diagnosis 4.

References: 1: AHIMA CDIP Exam Prep, Fourth Edition, p. 133 2: ICD-10-CM Official Guidelines for Coding and Reporting FY 2021, Section II.A 3: AHA Coding Clinic for ICD-10-CM and ICD-10-PCS, Fourth Quarter 2016 4: ICD-10-CM Official Guidelines for Coding and Reporting FY 2021, Section III.C : AHIMA CDIP Exam Prep, Fourth Edition https://my.ahima.org/store/product?id=67077

According to the AHIMA CDIP Exam Preparation Guide, the adjusted case mix index (CMI) is a measure that demonstrates the relative severity and complexity of patients treated in a hospital, and is used to evaluate the financial impact of a hospital’s clinical documentation integrity (CDI) program1. The adjusted CMI is calculated by multiplying the unadjusted CMI by a factor that accounts for the percentage of Medicare patients in the hospital2. The higher the adjusted CMI, the higher the expected reimbursement per patient, and the more effective the CDI program is assumed to be3. The other options are not correct because they do not measure the severity and complexity of patients or the financial impact of CDI. Hospital acquired conditions (HACs) are conditions that are not present on admission and are considered preventable by CMS, and may result in reduced reimbursement or penalties4. The program for evaluating payment patterns electronic report (PEPPER) is a report that provides hospital-specific data on potential overpayments or underpayments for certain services or diagnoses, and helps identify areas of risk or opportunity for improvement. Present on admission (POA) indicators are codes that indicate whether a condition was present at the time of admission or acquired during the hospital stay, and affect the assignment of DRGs and HACs. References:

CDIP Exam Preparation Guide - AHIMA

Demystifying and communicating case-mix index - ACDIS

What is Case Mix Index? | The Importance of CMI

Hospital-Acquired Conditions (HACs) | CMS

[PEPPER Resources]

[Present on Admission Reporting Guidelines - CMS]

AHIMA suggests that an organization should consider a physician response rate of 80% and an agreement rate of 80% as benchmarks for CDI program performance. These rates indicate the level of physician engagement and documentation accuracy in relation to CDI queries.

References: AHIMA. “Guidelines for Achieving a Compliant Query Practice (2019 Update).” Journal of AHIMA 90, no. 2 (February 2019): 20-29.

CMI is a metric that reflects the diversity, complexity, and severity of the patients treated at a healthcare facility, such as a hospital. CMI is used by CMS to determine hospital reimbursement rates for Medicare and Medicaid beneficiaries. CMI is calculated by adding up the relative MS-DRG weight for each discharge, and dividing that by the total number of Medicare and Medicaid discharges in a given month and year. Higher CMI values indicate that a hospital has treated a greater number of complex, resource-intensive patients, and the hospital may be reimbursed at a higher rate for those cases.

However, CMI is not the best measure of CDI performance, because it is influenced by many factors beyond CDI efforts, such as patient population, coding accuracy, documentation specificity, patient comorbidities, high volumes of highly weighted DRGs, and annual updates to relative MS-DRG weights. Therefore, measuring CMI over time with a focus on particular documentation improvement areas in addition to the overall CMI can provide a more comprehensive and meaningful assessment of CDI performance. For example, CDI programs can track CMI changes for specific DRGs, clinical conditions, or service lines that are targeted for documentation improvement initiatives. This can help identify the impact of CDI interventions on documentation quality, accuracy, and completeness.

A. Over time with a focus on high relative weight (RW) procedures that impact these procedures on overall CMI. This is not the best way to measure CMI as a metric of CDI performance, because it may not reflect the true complexity and severity of the patients treated at the facility. Focusing only on high RW procedures may overlook other documentation improvement opportunities for lower RW procedures or medical cases that may also affect patient outcomes, quality indicators, and reimbursement.

C. Month-to-month and focus on patient volumes to determine the raise the overall CMI. This is not a valid way to measure CMI as a metric of CDI performance, because patient volumes do not directly affect CMI. CMI is calculated by dividing the total relative weights by the total number of discharges, so increasing patient volumes will not necessarily raise the overall CMI unless the relative weights also increase.

D. Month-to-month to show CMI variability as a barometer of a specific month. This is not a reliable way to measure CMI as a metric of CDI performance, because month-to-month variations in CMI may be due to random fluctuations or seasonal effects that are not related to CDI efforts. Measuring CMI over a longer period of time can provide a more stable and accurate picture of CDI performance.

References:

CDIP Exam Preparation Guide, 2021 Edition. AHIMA Press. ISBN: 9781584268530

Case Mix Index (CMI) | Definitive Healthcare

Q&A: Understanding case mix index | ACDIS

Creating policies and procedures for the query process will help eliminate confusion among CDI staff, providers, coders, and other stakeholders regarding the purpose, scope, format, and expectations of the query process. Policies and procedures should be based on industry standards and best practices, and should be reviewed and updated regularly.

References: AHIMA/ACDIS. “Guidelines for Achieving a Compliant Query Practice (2019 Update).” Journal of AHIMA 90, no. 2 (February 2019): 20-29.

According to the ICD-10-CM Official Guidelines for Coding and Reporting FY 2023, heart failure with preserved ejection fraction (HFpEF) is also known as diastolic heart failure or heart failure with normal ejection fraction1. The code category for diastolic heart failure is I50.3-, which includes unspecified diastolic (congestive) heart failure (I50.30), acute diastolic (congestive) heart failure (I50.31), chronic diastolic (congestive) heart failure (I50.32), and acute on chronic diastolic (congestive) heart failure (I50.33)1. If the documentation does not specify the acuity of the diastolic heart failure, the default code is I50.301. Therefore, the correct coding for heart failure with preserved ejection fraction is I50.30.

References:

ICD-10-CM Official Guidelines for Coding and Reporting FY 20231

The abbreviation NEC stands for “not elsewhere classified” and is used in the ICD-10-CM Alphabetical Index when a specific code is not available for a condition. The coder should use the NEC notation to locate the closest existing code that matches the documented diagnosis. For example, if the physician documented a malignant neoplasm of the left upper eyelid, but the Alphabetical Index only has an entry for malignant neoplasm of eyelid NEC, then the coder should use the code C44.10 (Unspecified malignant neoplasm of unspecified eyelid, including canthus) and assign a seventh character to specify laterality. (CDIP Exam Preparation Guide)

References:

CDIP Exam Content Outline1

CDIP Exam Preparation Guide2

ICD-10-CM Official Guidelines for Coding and Reporting FY 20213

The director should involve the physician advisor/champion in addressing the medical staff’s concerns because the physician advisor/champion is a key member of the CDI team who can provide clinical expertise, education, and leadership to promote CDI among physicians. The physician advisor/champion can help to explain the goals and benefits of CDI, such as improving patient care quality, accuracy of documentation, and appropriate reimbursement. The physician advisor/champion can also address any misconceptions or fears that the physicians may have about CDI, such as encouraging inappropriate billing or increasing their workload. The physician advisor/champion can serve as a liaison between the CDI team and the medical staff, and foster a culture of collaboration and trust.

References:

CDIP® Exam Content Outline (https://www.ahima.org/media/1z0x0x1a/cdip-exam-content-outline.pdf)

CDIP® Exam Preparation Guide (https://my.ahima.org/store/product?id=67077)

A query should be generated to ask the physician for the POA indicator of the fall because the documentation is unclear whether the fall was present at the time of inpatient admission or not. The POA indicator is used to identify conditions that are present or not present at the time of admission, and has payment implications for certain hospital-acquired conditions (HACs). According to CMS, a fall resulting in trauma is one of the HACs that will not be paid at a higher rate if it is not present on admission. Therefore, it is important to clarify the POA indicator of the fall to ensure accurate coding and reimbursement. A query should be non-leading, concise, clear, relevant, and consistent with CDI standards and guidelines.

References:

CDIP® Exam Content Outline (https://www.ahima.org/media/1z0x0x1a/cdip-exam-content-outline.pdf)

Coding | CMS1

Present on Admission Indicators - Novitas Solutions2