2024 ICD-10-CM Diagnosis Code Q77.7

Approximate Synonyms

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

• Brachymetatarsia
• Brachymetatarsia of fourth metatarsal
• Chronic deafness
• Congenital conductive hearing loss
• Congenital hypoplasia of ulna
• Congenital hypotrichia
• Cono-spondylar dysplasia
• Czech dysplasia metatarsal type
• Degenerative polyarthritis
• Dyggve-Melchior-Clausen syndrome
• Eiken syndrome
• Immuno-osseous dysplasia
• Mild spondyloepiphyseal dysplasia due to COL2A1 mutation with early onset osteoarthritis
• Mild spondyloepiphyseal dysplasia with premature onset arthrosis
• Multiple epiphyseal dysplasia Al-Gazali type
• Multiple epiphyseal dysplasia Beighton type
• Oligodontia
• Opsismodysplasia
• Osteoarthritis of multiple joints
• Progressive spondyloepimetaphyseal dysplasia, short stature, short fourth metatarsals, intellectual disability syndrome
• Pseudoachondroplastic spondyloepiphyseal dysplasia syndrome
• Roifman syndrome
• Sponastrime dysplasia
• Spondyloepimetaphyseal disorder
• Spondyloepimetaphyseal dysplasia aggrecan type
• Spondyloepimetaphyseal dysplasia anauxetic type
• Spondyloepimetaphyseal dysplasia Genevieve type
• Spondyloepimetaphyseal dysplasia Handigodu type
• Spondyloepimetaphyseal dysplasia Irapa type
• Spondyloepimetaphyseal dysplasia Isidor type
• Spondyloepimetaphyseal dysplasia matrilin-3 type
• Spondyloepimetaphyseal dysplasia Missouri type
• Spondyloepimetaphyseal dysplasia PAPSS2 type
• Spondyloepimetaphyseal dysplasia Shohat type
• Spondyloepimetaphyseal dysplasia with joint laxity
• Spondyloepimetaphyseal dysplasia with multiple dislocations
• Spondyloepimetaphyseal dysplasia, abnormal dentition syndrome
• Spondyloepimetaphyseal dysplasia, hypotrichosis syndrome
• Spondyloepimetaphyseal dysplasia, short limb, abnormal calcification syndrome
• Spondyloepiphyseal dysplasia Cantu type
• Spondyloepiphyseal dysplasia congenita
• Spondyloepiphyseal dysplasia Kimberley type
• Spondyloepiphyseal dysplasia MacDermot type
• Spondyloepiphyseal dysplasia Maroteaux type
• Spondyloepiphyseal dysplasia Reardon type
• Spondyloepiphyseal dysplasia Stanescu type
• Spondyloepiphyseal dysplasia tarda
• Spondyloepiphyseal dysplasia tarda Kohn type
• Spondyloepiphyseal dysplasia with congenital joint dislocations
• Spondyloepiphyseal dysplasia with joint laxity
• Spondyloepiphyseal dysplasia, craniosynostosis, cleft palate, cataract and intellectual disability syndrome
• Spondylo-megaepiphyseal-metaphyseal dysplasia
• Spondylometaphyseal dysplasia Golden type
• Spondyloperipheral dysplasia
• Spondyloperipheral dysplasia
• Spondyloperipheral dysplasia with short ulna syndrome
• X-linked intellectual disability, cerebellar hypoplasia, spondyloepiphyseal dysplasia syndrome
• X-linked spondyloepimetaphyseal dysplasia

Clinical Information

• Spondyloperipheral Dysplasia - an autosomal dominant condition caused by mutation(s) in the col2a1 gene, encoding collagen alpha-1(ii) chain. it is characterized by short stature, pugilistic facies, midface hypoplasia, spondyloepiphyseal dysplasia, kyphosis, short ulna, and absent styloid process. mutation(s) in the same gene are responsible for kniest dysplasia.

Q77.7 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.

MS-DRG	MS-DRG Title	MCD	Relative Weight
564	OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC	08	1.5619
565	OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC	08	0.9994
566	OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC	08	0.7505

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)

Q77.7 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

POA Indicator	Reason for Code	CMS will pay the CC/MCC DRG?
Y	Diagnosis was present at time of inpatient admission.	YES
N	Diagnosis was not present at time of inpatient admission.	NO
U	Documentation insufficient to determine if the condition was present at the time of inpatient admission.	NO
W	Clinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.	YES
1	Unreported/Not used - Exempt from POA reporting.	NO

Convert Q77.7 to ICD-9-CM

• ICD-9-CM Code: 756.4 - Chondrodystrophy
  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

Spondyloepiphyseal dysplasia congenita

Spondyloepiphyseal dysplasia congenita is an inherited bone growth disorder that results in short stature (dwarfism), skeletal abnormalities, and problems with vision and hearing. This condition affects the bones of the spine (spondylo-) and the ends (epiphyses) of long bones in the arms and legs. Congenita indicates that the condition is present from birth.

People with spondyloepiphyseal dysplasia congenita have short stature from birth, with a very short trunk and neck and shortened limbs. Their hands and feet, however, are usually average-sized. Adult height ranges from 3 feet to just over 4 feet. Abnormal curvature of the spine (kyphoscoliosis and lordosis) becomes more severe during childhood. Instability of the spinal bones (vertebrae) in the neck may increase the risk of spinal cord damage. Other skeletal features include flattened vertebrae (platyspondyly); an abnormality of the hip joint that causes the upper leg bones to turn inward (coxa vara); a foot deformity called a clubfoot; and a broad, barrel-shaped chest. Abnormal development of the chest can cause problems with breathing. Arthritis and decreased joint mobility often develop early in life.

People with spondyloepiphyseal dysplasia congenita have mild changes in their facial features. The cheekbones close to the nose may appear flattened. Some infants are born with an opening in the roof of the mouth (a cleft palate). Severe nearsightedness (high myopia) is common, as are other eye problems that can impair vision. About one quarter of people with this condition have hearing loss.

[Learn More in MedlinePlus]

X-linked spondyloepiphyseal dysplasia tarda

X-linked spondyloepiphyseal dysplasia tarda is a condition that impairs bone growth and occurs almost exclusively in males. The name of the condition indicates that it affects the bones of the spine (spondylo-) and the ends of long bones (epiphyses) in the arms and legs. "Tarda" indicates that signs and symptoms of this condition are not present at birth, but appear later in childhood, typically between ages 6 and 10.

Males with X-linked spondyloepiphyseal dysplasia tarda have skeletal abnormalities and short stature. Affected boys grow steadily until late childhood, when their growth slows. Their adult height ranges from 4 feet 6 inches (137 cm) to 5 feet 4 inches (163 cm). Impaired growth of the spinal bones (vertebrae) primarily causes the short stature. Spinal abnormalities include flattened vertebrae (platyspondyly) with hump-shaped bulges, progressive thinning of the discs between vertebrae, and an abnormal curvature of the spine (scoliosis or kyphosis). These spinal problems also cause back pain in people with this condition. Individuals with X-linked spondyloepiphyseal dysplasia tarda have a short torso and neck, and their arms are disproportionately long compared to their height.

Other skeletal features of X-linked spondyloepiphyseal dysplasia tarda include an abnormality of the hip joint that causes the upper leg bones to turn inward (coxa vara); multiple abnormalities of the epiphyses, including a short upper end of the thigh bone (femoral neck); and a broad, barrel-shaped chest. A painful joint condition called osteoarthritis that typically occurs in older adults often develops in early adulthood in people with X-linked spondyloepiphyseal dysplasia tarda and worsens over time, most often affecting the hips, knees, and shoulders.

[Learn More in MedlinePlus]

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.