Osteochondrodysplasia with defects of growth of tubular bones and spine (Q77) ICD-10-CM
The Q77 code range covers osteochondrodysplasia with defects of growth of tubular bones and spine with 11 ICD-10-CM diagnosis codes. 10 of them are billable and valid for claim submission in fiscal year 2027, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- congenital myotonic chondrodystrophy G71.13
Codes in the Q77 Range 11 codes · 10 billable
- Q77 Osteochondrodysplasia with defects of growth of tubular bones and spineNon-billable
- Q77.0 Achondrogenesis
- Q77.1 Thanatophoric short stature
- Q77.2 Short rib syndrome
- Q77.3 Chondrodysplasia punctata
- Q77.4 Achondroplasia
- Q77.5 Diastrophic dysplasia
- Q77.6 Chondroectodermal dysplasia
- Q77.7 Spondyloepiphyseal dysplasia
- Q77.8 Other osteochondrodysplasia with defects of growth of tubular bones and spine
- Q77.9 Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Q77 range.
Achondrogenesis
A rare group of disorders characterized by defective development of bones and cartilage.
Achondroplasia
An autosomal dominant disorder that is the most frequent form of short-limb dwarfism. Affected individuals exhibit short stature caused by rhizomelic shortening of the limbs, characteristic facies with frontal bossing and mid-face hypoplasia, exaggerated lumbar lordosis, limitation of elbow extension, GENU VARUM, and trident hand. (Online Mendelian Inheritance in Man, http://www.ncbi.nlm.nih.gov/Omim, MIM#100800, April 20, 2001)
Chondrodysplasia Punctata
A heterogeneous group of bone dysplasias, the common character of which is stippling of the epiphyses in infancy. The group includes a severe autosomal recessive form (CHONDRODYSPLASIA PUNCTATA, RHIZOMELIC), an autosomal dominant form (Conradi-Hunermann syndrome), and a milder X-linked form. Metabolic defects associated with impaired peroxisomes are present only in the rhizomelic form.
Diastrophic Dysplasia
An autosomal recessive condition caused by mutation(s) in the SLC26A2 gene, encoding sulfate transporter. It is characterized by cartilaginous and bony abnormalities, in particular very short arms and legs and the "hitchhiker" thumb, resulting from deformity of the first metacarpal.
Ellis-Van Creveld Syndrome
Dwarfism occurring in association with defective development of skin, hair, and teeth, polydactyly, and defect of the cardiac septum. (Dorland, 27th ed)
Thanatophoric Dysplasia
A severe form of neonatal dwarfism with very short limbs. All cases have died at birth or later in the neonatal period.
About the Q77 Code Range
These conditions are present at birth and involve growth defects of tube-shaped bones and the spine.
Within Q77, subdivisions identify named conditions, including Q77.2 for short rib syndrome. Separate subdivisions cover other forms and forms that are not specified.
Questions About This Page
How many billable codes are in the Q77 range?
Of the 11 codes in this range, 10 are billable and valid for claim submission from October 1, 2026 through September 30, 2027. Category header codes group them but cannot be reported on claims.
What does the Q77 range classify?
The range classifies osteochondrodysplasia with defects of growth of tubular bones and spine. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2027 ICD-10-CM Tabular List and order file, effective October 1, 2026 through September 30, 2027.
