2024 ICD-10-CM Diagnosis Code Q78.5

Approximate Synonyms

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

• Acroscyphodysplasia
• Autosomal recessive spondylometaphyseal dysplasia Megarbane type
• Axial spondylometaphyseal dysplasia
• Bowing of upper limb
• Congenital bowing of long bone
• Congenital deformity of bone of forearm
• Congenital maxillary hypoplasia
• Craniometaphyseal dysplasia
• Craniometaphyseal dysplasia
• Craniometaphyseal dysplasia - mild type
• Craniometaphyseal dysplasia - severe type
• Hypoplasia of maxillary bone
• Intrauterine growth restriction, metaphyseal dysplasia, adrenal hypoplasia congenita, and genital anomaly syndrome
• Kozlowski spondylometaphyseal dysplasia
• Lentiglobus
• Metaphyseal chondrodysplasia
• Metaphyseal chondrodysplasia, Jansen type
• Metaphyseal chondrodysplasia, McKusick type
• Metaphyseal chondrodysplasia, Schmid type
• Metaphyseal chondrodysplasia, Sedaghatian type
• Metaphyseal chondrodysplasia, Spahr type
• Metaphyseal dysplasia Braun Tinschert type
• Metaphyseal dysplasia, maxillary hypoplasia, brachydactyly syndrome
• Microphakia
• Microspherophakia
• Microspherophakia with metaphyseal dysplasia syndrome
• Osteosclerosis
• Osteosclerotic metaphyseal dysplasia
• Overgrowth, metaphyseal undermodeling, spondylar dysplasia syndrome
• Pyle metaphyseal dysplasia
• Regressive spondylometaphyseal dysplasia
• Spherophakia
• Spondyloenchondrodysplasia
• Spondylometaphyseal dysplasia
• Spondylometaphyseal dysplasia - Sutcliffe type
• Spondylometaphyseal dysplasia A4 type
• Spondylometaphyseal dysplasia Czarny Ratajczak type
• Spondylometaphyseal dysplasia, bowed forearms, facial dysmorphism syndrome
• Ulna metaphyseal dysplasia syndrome

Clinical Information

• Osteopetrosis

  excessive formation of dense trabecular bone leading to pathological fractures; osteitis; splenomegaly with infarct; anemia; and extramedullary hemopoiesis (hematopoiesis, extramedullary).

• Osteosclerosis

  an abnormal hardening or increased density of bone tissue.

• Osteosclerosis

  abnormally high bone density.

Q78.5 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)

Q78.5 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

Convert Q78.5 to ICD-9-CM

• ICD-9-CM Code: 756.59 - Osteodystrophy NEC
  Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Patient Education

Pyle disease

Pyle disease is a disorder of the bones. Its hallmark feature is an abnormality of the long bones in the arms and legs in which the ends (metaphyses) of the bones are abnormally broad; the shape of the bones resembles a boat oar or paddle. The broad metaphyses are due to enlargement of the spongy inner layer of bone (trabecular bone). Although trabecular bone is expanded, the dense outermost layer of bone (cortical bone) is thinner than normal. As a result, the bones are fragile and fracture easily. The bone abnormalities in the legs commonly cause knock knees (genu valgum) in affected individuals.

Other bone abnormalities can also occur in Pyle disease. Affected individuals may have widened collar bones (clavicles), ribs, or bones in the fingers and hands. Dental problems are common in Pyle disease, including delayed appearance (eruption) of permanent teeth and misalignment of the top and bottom teeth (malocclusion).

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.