2024 ICD-10-CM Diagnosis Code Q44.79

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• Abnormal liver lobulation
• Absence of liver
• Accessory liver
• Agenesis of liver
• Atrophy of liver
• Congenital abnormal fusion of liver lobes
• Congenital abnormal shape of liver
• Congenital absence of liver
• Congenital absence of liver and/or gallbladder
• Congenital absence of lobe of liver
• Congenital atrophy of left lobe of liver
• Congenital duplication of liver
• Congenital floating liver
• Congenital hepatic fibrosis
• Congenital hepatic fibrosis
• Congenital hepatic fibrosis
• Congenital hepatic fibrosis
• Congenital hepatomegaly
• Congenital hepatomegaly
• Congenital hepatomegaly
• Congenital hyperplasia of muscle
• Congenital liver grooves
• Congenital malposition of liver
• Congenital microhepatia
• Congenital syphilitic hepatomegaly
• Ectopic liver
• Familial aplasia of the vermis
• Fibrosis of pancreas
• Floating liver
• Focal nodular hypoplasia of liver
• Hepatic fibrosis, renal cyst, intellectual disability syndrome
• Joubert syndrome
• Joubert syndrome with congenital hepatic fibrosis
• Liver and/or biliary duplication
• Liver and/or biliary duplication
• Liver hyperplasia
• Liver in central position
• Liver in left sided position
• Microhepatia
• Muscular hypertrophy, hepatomegaly, polyhydramnios syndrome
• NPHP3-related Meckel-like syndrome
• Renal hepatic pancreatic dysplasia
• Riedel's lobe of liver
• Supernumerary liver lobe
• Trilobular liver

Clinical Information

• Joubert Syndrome

  a rare genetic syndrome characterized by the hypoplasia or absence of the cerebellar vermis. signs and symptoms include rapid breathing (hyperpnea), sleep apnea, abnormal eye movements, mental retardation, and ataxia.

• Joubert Syndrome 17|JBTS17

  an autosomal recessive subtype of joubert syndrome caused by mutation(s) in the cplane1 gene, encoding ciliogenesis and planar polarity effector 1.

• Joubert Syndrome 3|JBTS3

  an autosomal recessive subtype of joubert syndrome caused by mutation(s) in the ahi1 gene, encoding jouberin.

• Joubert Syndrome 4

  a rare genetic syndrome caused by mutations in the nphp1 gene. it is characterized by the hypoplasia or absence of the cerebellar vermis. signs and symptoms include rapid breathing (hyperpnea), sleep apnea, abnormal eye movements, mental retardation, and ataxia.

• Joubert Syndrome 7|JBTS7

  an autosomal recessive sub-type of joubert syndrome caused by mutation(s) in the rpgrip1l gene, encoding a protein thought to function in programmed cell death. it is characterized by cerebellar and oculomotor apraxia, hypotonia and psychomotor delay, neonatal respiratory abnormalities, renal abnormalities, and retinal dystrophy.

• Joubert Syndrome 9|JBTS9

  an autosomal recessive subtype of joubert syndrome caused by mutation(s) in the cc2d2a gene, encoding coiled-coil and c2 domain-containing protein 2a.

• Congenital Hepatic Fibrosis

  a congenital disorder usually inherited in an autosomal recessive pattern. it affects the hepatobiliary system and the kidneys. it is characterized by liver fibrosis, portal hypertension, and renal cysts.

New 2024 ICD-10-CM Code

Q44.79 is new to ICD-10-CM code set for the FY 2024, effective October 1, 2023. The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2023. This is a new and revised code for the FY 2024 (October 1, 2023 - September 30, 2024).

Q44.79 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Present on Admission (POA)

Q44.79 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here.

CMS POA Indicator Options and Definitions

Replacement Code

Q4479 replaces the following previously assigned ICD-10-CM code(s):

• Q44.7 - Other congenital malformations of liver

Code History

• FY 2024 - Code Added, effective from 10/1/2023 through 9/30/2024