Diagnosis-related group downgrades result from a mix of insufficient or incomplete documentation, coding errors, and diagnoses that lack clinical validation. When higher-acuity diagnoses designated as MCCs or CCs are removed, the case may be reassigned to a lower-paying DRG, resulting in a loss of revenue. Follow Nancy Reading, BS, CPC, CPC-P, CPC-I, as she discusses the challenges of denial reviews conducted by third-party payers and proactive strategies to prevent and manage denials.
Congenital heart defects, the most common type of birth defect, are among the most clinically significant anomalies in neonatal care. Bobbie Vannatter, MHA, RHIA, CCS, CDIP; Andrew Puckett, DNP, RN, NI-BC; and Vitality Shalumov, RN, BSN, CCDS, reviews selected neonatal congenital cardiac conditions and highlights key documentation considerations that influence coding and representation of severity.
Q: How do the clinical consequences of measles and rubella influence ICD-10-CM code selection, particularly when coding specific complications, congenital rubella syndrome, and infections documented without complications?
Because third-degree burns are a severe injury that destroys the epidermis and dermis and may extend into the underlying subcutaneous tissue, accurate coding depends on clear documentation of burn depth, anatomical site, and total body surface area. Learn how to navigate the fundamentals of ICD-10-CM code selection and sequencing guidelines for third-degree burns, including how to prioritize burn severity and account for multiple injury sites. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Q: How can queries play a role in clarifying malnutrition and cachexia diagnoses while ensuring the patient’s condition is reflected in the medical record accurately for proper coding?
Terry Tropin, MSHAI, RHIA, CCS-P, focuses on the less extensive changes of the fiscal year 2027 ICD-10-CM update for conditions that received only a handful of new codes but are nonetheless important for accurate and specific code assignment. Although these additions may be easy to overlook among the larger expansions to the code set, they provide new opportunities to capture conditions and clinical circumstances with greater precision.
Hepatic encephalopathy is a neurologic complication of severe liver disease in which impaired liver function allows toxic substances that are normally metabolized and eliminated by the liver to accumulate in the bloodstream and reach the brain. For coders, understanding the relationship between hepatic encephalopathy, the underlying liver disease, presence of a coma, and liver transplant complications is essential for accurately capturing the patient’s clinical picture and assigning the most appropriate ICD-10-CM codes. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Three newly released compliance audits highlight significant gaps between high-risk diagnosis codes submitted for Medicare Advantage risk adjustment and the medical records supporting those diagnoses. Across the three organizations, OIG found that 533 of 700 sampled enrollee-years lacked sufficient medical-record support for certain submitted diagnosis codes and estimated approximately $202.2 million in overpayments.
Q: How should a coder handle the documentation and coding of a fragility fracture when the underlying cause, such as osteoporosis, has not been clearly established?
Lysosomal storage disorders are a group of rare, inherited metabolic disorders caused by genetic mutations that affect the normal function of lysosomes, or the structures within cells that contain enzymes responsible for breaking down and recycling various substances, including fats, sugars, proteins, and other cellular materials. Review some of the major categories in which commonly encountered lysosomal storage disorders are classified. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Hypertensive heart disease results from untreated or under-treated hypertension, causing a range of physiologic changes affecting the left atrium, left ventricle, and coronary arteries. Nancy Reading, BS, CPC, CPC-P, CPC-I, delves into the progression of hypertension to heart failure and shows how accurate code assignment and sequencing of the two conditions rely on the reason for admission and the relationships established among the patient’s conditions as documented by providers.
CMS recently published the fiscal year 2027 ICD-10-CM Official Guidelines for Coding and Reporting to accompany the ICM-10-CM update, effective October 1. Coders should note the clarifications and revisions added to several areas of the guidelines, specifically as it relates to sepsis, cancer treatment, hypertension, genetic disorders, and Z codes.
Identifying secondary diagnoses is an important part of accurately reflecting the patient’s overall condition and the care provided during an encounter. While the primary diagnosis represents the main reason for the patient’s visit or admission, secondary diagnoses capture additional conditions that require attention or have an impact on the patient’s care. Note : To access this free article, make sure you first register if you do not have a paid subscription.
A TIA is typically a short-lived transient event that results in no permanent tissue damage or residual neurologic deficits. On the other hand, a stroke results from either a vessel blockage or a hemorrhage, causes some variety of tissue damage, and may leave residual neurologic deficits. Follow Nancy Reading, BS, CPC, CPC-P, CPC-I, as she explores the differences between these two conditions.
Q: What clinical factors distinguish acute skin failure from a pressure injury, and how should the two conditions be approached from an ICD-10-CM coding perspective?
Q: What are the key characteristics of cachexia versus ASPEN-defined malnutrition, and what ICD-10-CM codes are available for reporting each condition?
Understanding the clinical findings associated with quadriplegia is an important first step in determining how the condition should be reported. After reviewing the causes and effects of quadriplegia and reportable ICD-10-CM codes for the condition, this article will dive into key physical examination findings and documentation considerations that can help further guide accurate code selection. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Congenital heart defects are commonly encountered chronic conditions in pediatric coding and documentation, yet their presence alone does not ensure they are appropriately reported or fully understood within the clinical context of an encounter. Jenny Esper, RHIA, CCS, CDIP, CCDS, tackles the challenges of determining when a CHD is relevant to the admission and whether the documentation accurately reflects its clinical significance for proper coding.
With insight from Lynette Byerly, BSN, RN, CCDS, CCS, coders can discover how CDI specialists bridge the clinical world to the realm of coding and reporting, especially when pediatric conditions are not always easily reportable.
A newly released Office of Inspector General report estimates that Medicare Advantage organizations may have received nearly $462 million in improper payments after submitting unsupported acute stroke diagnosis codes to CMS. The findings highlight ongoing concerns about documentation quality and diagnosis validation in risk adjustment reporting.
A diagnosis of systemic lupus erythematosus is only the starting point. Accurate ICD-10-CM coding requires careful attention to the provider's documentation, including whether the lupus is drug-induced, whether specific organ or system involvement is documented, and whether additional codes are required. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Drug overdose deaths in the United States declined for the third consecutive year in 2025, according to preliminary data released by the Centers for Disease Control and Prevention. The decline marks the longest sustained reduction in overdose deaths in decades and brings the national total back to roughly the level seen in 2019, before the COVID-19 pandemic.
Beyond capturing primary and secondary diagnoses, what goes into a record can hugely impact how a patient is cared for both now and in the future, as well as the trajectory of a community’s health at large. See why it’s essential to go beyond surface-level knowledge and gain a true understanding of how and why SDOH data is important to track, especially for pediatric patients.
Accurate coding for liver failure requires much more than selecting the correct ICD-10-CM code—it demands an understanding of liver function, disease progression, clinical indicators, and documentation nuances. Note : To access this free article, make sure you first register if you do not have a paid subscription.
This article examines two examples—bone marrow transplantation and lung transplantation—to illustrate the similarities and differences in coding transplant encounters. These examples demonstrate how transplant coding is largely driven by transplant status, the reason for the encounter, and the presence or absence of transplant-related complications, while highlighting the unique coding considerations associated with specific transplant types. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Respiratory syncytial virus and COVID-19 are both types of respiratory viruses, and the symptoms can be very similar and overlap each other. Shontia Leon-Guerrero, CPC, CEDC, CEMC, CPC-I Educator, reviews the signs and symptoms of both conditions in infants and children as well as what coders need to know such as diagnosis codes, procedure codes for vaccine administration, and documentation expectations.
One of the challenges in coding personality disorders is that the terminology used in clinical documentation may not always match the formal diagnostic title listed in ICD-10-CM. Understanding the clarifying and inclusion terms associated with personality disorder codes helps ensure accurate code assignment, reduces the risk of miscoding similar-sounding disorders, and supports complete and compliant clinical documentation. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Comorbid conditions or complications (CC) and major comorbid conditions or complications (MCC) indicate a higher level of severity of illness, an elevated risk of mortality, and an above average intensity of resource utilization. Given their impact on reimbursement and quality reporting, Nancy Reading, BS, CPC, CPC-P, CPC-I, emphasizes how success in coding CCs and MCCs requires a delicate balance of documentation specificity and clinical clarity in diagnosis assignment.
Human immunodeficiency virus is a chronic viral infection with clinical manifestations that can range from an asymptomatic infection to AIDS, the most advanced stage of the disease. Because HIV-related diagnoses carry unique ICD-10-CM coding guidelines, coders must carefully review the medical record to determine whether the documentation supports assignment of HIV disease, asymptomatic HIV infection, or other HIV status, as well as the presence of any HIV-related illnesses.
Diagnosing opportunistic infections can be particularly challenging because the presenting signs and symptoms are nonspecific and may resemble a wide range of other conditions, making it difficult for providers to immediately identify the exact infectious process. Nevertheless, coders should recognize how clear documentation of both the infection and the underlying pathogen is particularly critical for proper code selection as many ICD-10-CM codes are organism-specific and dependent on the anatomical site or body system involved. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Compared to recent past years, CMS proposed fewer ICD-10-CM code changes in the 2027 Hospital Inpatient Prospective Payment System proposed rule, including 184 new codes, 4 revised code descriptions, and 30 invalidated codes.
Hospitals have had a more complex time attempting to retain fair DRG payment by defending both the documented clinical diagnoses established by the treating provider and the corresponding codes in written appeal. Julie Dagen, RHIA, CCDS, CCS, seeks to address some key aspects of compliant hospital navigation through the rough waters of DRG denials.
Q: How do coders determine whether to assign an ICD-10-CM P code (for maternal conditions affecting the newborn) or a Z code (for factors influencing health status) for a newborn?
From a coding perspective, accurate reporting of artificial openings is essential because it communicates critical information about a patient’s anatomy, clinical status, and the level of care required. Coders must distinguish between a stable, well-functioning artificial opening (status), active management or attention to the opening, and true complications, as each circumstance is classified differently within ICD-10-CM. Note : To access this free article, make sure you first register if you do not have a paid subscription.
ICD-11 elevates SDOH and other contextual factors into a more standardized, digital-first framework that can support the next generation of equity measurement, population health analytics, and financing models. Learn how ICD-11 SDOH coding is not just a classification change–it is an enabler of strategic goals in population health, financial sustainability, and equitable care delivery.
Coding for alcohol- and drug-related disorders requires careful attention to both clinical terminology and the structure of the ICD-10-CM classification system. These conditions fall under the broader category of mental and behavioral disorders due to psychoactive substance use, primarily coded within the F10-F19 range. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Assigning and sequencing diagnosis codes for COPD in the face of an acute exacerbation of COPD, particularly when the patient’s condition progresses to respiratory failure, has posed challenges to coders for quite a while. Nancy Reading, BS, CPC, CPC-P, CPC-I, demonstrates how to nail down the diagnosis codes based on clinical presentations before determining the correct sequencing for principal diagnosis assignment.
Accurate reporting of left-sided heart failure types relies on specific ICD-10-CM codes that align with the documented ejection fraction category, although ICD-10-CM also provides specific codes for other clinically important forms of heart failure, with and without other chronic conditions, that reflect distinct pathophysiologic mechanisms and coding considerations. Note : To access this free article, make sure you first register if you do not have a paid subscription.
Q: A patient with dementia has not taken prescribed Lasix for one week due to forgetting and presents with worsening acute heart failure. What is going to be sequenced first: the underdose or the acute heart failure?
Porcelain aorta is a disease that is caused by severe and widespread hardening of the walls of the ascending aorta that reaches to the aortic arch and descending aorta. Although there are several methods used to diagnose porcelain aorta, Brandi Hutcheson, RN, MSN, CCM, CCDS, CCA, says there is not a clear consensus on how it should be diagnosed.
At the recent public ICD-10 Coordination and Maintenance Committee Meeting, the Centers for Disease Control and Prevention National Center for Health Statistics discussed a draft proposal involving an expansion of sepsis diagnosis coding. Review the updates being considered for implementation on April 1, 2027. Note : To access this free article, make sure you first register if you do not have a paid subscription.
A report published by the American Cancer Society found that colorectal cancer rates among adults younger than 65 continue to increase while rates for older adults continue to decline. The study found that the increase is being driven by a higher prevalence of rectal cancer, which now makes up 32% of all colorectal cancer diagnoses, up from 27% in the mid-2000s.
According to data from the Centers for Disease Control and Prevention, the U.S. recorded 649 maternal deaths in 2024. While the total number of deaths declined slightly from 669 deaths in 2023, the overall maternal mortality rate showed no statistically significant improvement, highlighting ongoing challenges in maternal health outcomes.
Q: What steps should medical coders take to correctly code adverse drug effects in ICD-10-CM, and when should a provider query be submitted if documentation is unclear or unspecific?
From an inpatient coding perspective, vascular dementia may be documented for hospitalized patients because it coexists with other acute or chronic medical conditions. Accurate coding of the condition and its associated risk factors and complications will ensure the patient’s overall severity of illness and complexity of care are fully captured. Note : To access this free article, make sure you first register if you do not have a paid subscription.
In December 2023, the Office of the Inspector General published a toolkit for Medicare Advantage organizations who submit high-risk diagnoses, and it announced in January 2026 that an audit will be conducted on high-risk codes that the organizations submitted for 2024. Nancy Reading, BS, CPC, CPC-P, CPC-I, reviews the high-risk codes and emphasizes what to look for in the documentation to support coding practices.
Immunoglobulin G4-related disease is a chronic immune-mediated fibroinflammatory disorder that often manifests with tumor-like masses and/or painless enlargement of multiple organs. Shontia Leon-Guerrero, CPC, CEDC, CEMC, CPC-I Educator, explores the general manifestations of the disease, its signs and symptoms, as well as key documentation tips and a coding scenario.
