DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Q77 Osteochondrodysplasia with defects of growth of tubular bones and spine

  • Header · not billable

Q77 is not billable. The category heads 10 billable codes in FY2027: the 10 codes directly below it.

Index → code

  • Achondrogenesis → Q77.0
  • Jeune's disease → Q77.2
  • Hypochondroplasia → Q77.4

Where it sits

  1. Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
  2. Q65-Q79 Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)
  3. Q77 Osteochondrodysplasia with defects of growth of tubular bones and spine
Billable codes
10
Subdivisions
10
CC / MCC codes
1 / 0
HCC V28 codes
0
New FY2027
0
Index entries
33

Codes in Q77

  1. Q77.0
    Achondrogenesis
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Hypochondrogenesis
  2. Q77.1
    Thanatophoric short stature
    BillableExempt
  3. Q77.2
    Short rib syndrome
    BillableCCExempt
    Inclusion terms 1

    Inclusion terms

    • Asphyxiating thoracic dysplasia [Jeune]
  4. Q77.3
    Chondrodysplasia punctata
    BillableExempt
    Excludes1 1

    Excludes1

    • Rhizomelic chondrodysplasia punctata (E71.540) E71.540
  5. Q77.4
    Achondroplasia
    BillableExempt
    Inclusion terms 2

    Inclusion terms

    • Hypochondroplasia
    • Osteosclerosis congenita
  6. Q77.5
    Diastrophic dysplasia
    BillableExempt
  7. Q77.6
    Chondroectodermal dysplasia
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Ellis-van Creveld syndrome
  8. Q77.7
    Spondyloepiphyseal dysplasia
    BillableExempt
  9. Q77.8
    Other osteochondrodysplasia with defects of growth of tubular bones and spine
    BillableExempt
  10. Q77.9
    Osteochondrodysplasia with defects of growth of tubular bones and spine, unspecified
    BillableExempt

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At Q77

Excludes1

Excludes2

  • congenital myotonic chondrodystrophy (G71.13) G71.13

Notes that also apply

Chapter 17 instructions (Notes 1, Excludes2 1): printed on the chapter 17 page.

Index entries

  • Achondrogenesis → Q77.0
  • Hypochondrogenesis → Q77.0
  • Thanatophoric dwarfism or short stature → Q77.1
  • Jeune's disease → Q77.2
  • Conradi (-Hunermann) disease → Q77.3
  • Achondroplasia (osteosclerosis congenita) → Q77.4
  • Chondrogenesis imperfecta → Q77.4
  • Hypochondroplasia → Q77.4
  • Chondroectodermal dysplasia → Q77.6
  • Ellis-van Creveld syndrome (chondroectodermal dysplasia) → Q77.6
  • Leri-Weill syndrome → Q77.8
  • Dwarfismthanatophoric → Q77.1
  • Dysplasiaasphyxiating thoracic (congenital) → Q77.2
  • Dystrophy, dystrophiathoracic, asphyxiating → Q77.2
  • Short, shortening, shortnessrib syndrome → Q77.2
  • Chondrodysplasiacalcificans congenita → Q77.3
  • Chondrodysplasiapunctata → Q77.3
  • Chondrodystrophy, chondrodystrophia (familial) (fetalis) (hypoplastic)calcificans congenita → Q77.3
  • Chondrodystrophy, chondrodystrophia (familial) (fetalis) (hypoplastic)punctata → Q77.3
  • Chondrodysplasiafetalis → Q77.4
  • Dwarfismachondroplastic → Q77.4
  • Dwarfismhypochondroplastic → Q77.4
  • Osteosclerosiscongenita → Q77.4
  • Dysplasiadystrophic → Q77.5
  • Disease, diseasedEllis-van Creveld (chondroectodermal dysplasia) → Q77.6
  • Dysplasiachondroectodermal → Q77.6
  • Syndromechondroectodermal dysplasia → Q77.6
  • SyndromeEllis-van Creveld → Q77.6
  • Dysplasiaspondyloepiphyseal → Q77.7
  • Dwarfismmetatropic → Q77.8
  • Osteochondrodysplasiawith defects of growth of tubular bones and spine → Q77.9
  • Syndromeshortrib → Q77.2
  • Osteochondrodysplasiawith defects of growth of tubular bones and spinespecified NEC → Q77.8

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy