DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Q84 Other congenital malformations of integument

  • Header · not billable

Q84 is not billable. The category heads 9 billable codes in FY2027: the 9 codes directly below it.

Index → code

Where it sits

  1. Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
  2. Q80-Q89 Other congenital malformations (Q80-Q89)
  3. Q84 Other congenital malformations of integument
Billable codes
9
Subdivisions
9
CC / MCC codes
0 / 0
HCC V28 codes
0
New FY2027
0
Index entries
61

Codes in Q84

  1. Q84.0
    Congenital alopecia
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Congenital atrichosis
  2. Q84.1
    Congenital morphological disturbances of hair, not elsewhere classified
    BillableExempt
    Inclusion terms 3, Excludes1 1

    Inclusion terms

    • Beaded hair
    • Monilethrix
    • Pili annulati

    Excludes1

    • Menkes' kinky hair syndrome (E83.09) E83.09
  3. Q84.2
    Other congenital malformations of hair
    BillableExempt
    Inclusion terms 3

    Inclusion terms

    • Congenital hypertrichosis
    • Congenital malformation of hair NOS
    • Persistent lanugo
  4. Q84.3
    Anonychia
    BillableExempt
    Excludes1 1

    Excludes1

    • nail patella syndrome (Q87.2) Q87.2
  5. Q84.4
    Congenital leukonychia
    BillableExempt
  6. Q84.5
    Enlarged and hypertrophic nails
    BillableExempt
    Inclusion terms 2

    Inclusion terms

    • Congenital onychauxis
    • Pachyonychia
  7. Q84.6
    Other congenital malformations of nails
    BillableExempt
    Inclusion terms 3

    Inclusion terms

    • Congenital clubnail
    • Congenital koilonychia
    • Congenital malformation of nail NOS
  8. Q84.8
    Other specified congenital malformations of integument
    BillableExempt
    Inclusion terms 1

    Inclusion terms

    • Aplasia cutis congenita
  9. Q84.9
    Congenital malformation of integument, unspecified
    BillableExempt
    Inclusion terms 2

    Inclusion terms

    • Congenital anomaly of integument NOS
    • Congenital deformity of integument NOS

Sources of each column.

Instructions

Notes that also apply

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

Index entries

  • Beaded hair (congenital) → Q84.1
  • Monilethrix (congenital) → Q84.1
  • Ringed hair (congenital) → Q84.1
  • Thrix annulata (congenital) → Q84.1
  • Trichostasis spinulosa (congenital) → Q84.1
  • Woolly, wooly hair (congenital) (nevus) → Q84.1
  • Anonychia (congenital) → Q84.3
  • Pachyonychia (congenital) → Q84.5
  • Eponychia → Q84.6
  • Platyonychia (congenital) → Q84.6
  • Polyunguia → Q84.6
  • Agenesishair → Q84.0
  • Alopecia (hereditaria) (seborrheica)congenital, congenitalis → Q84.0
  • Piliannulati or torti (congenital) → Q84.1
  • Twist, twistedhair (congenital) → Q84.1
  • Anomaly, anomalous (congenital) (unspecified type)hair → Q84.2
  • Canities (premature)congenital → Q84.2
  • Grayness, hair (premature)congenital → Q84.2
  • Hypertrichosiscongenital → Q84.2
  • Hypertrichosislanuginosa → Q84.2
  • Hypoplasia, hypoplastichair → Q84.2
  • Malformation (congenital)hair → Q84.2
  • Persistence, persistent (congenital)lanugo → Q84.2
  • Ulerythemaophryogenes, congenital → Q84.2
  • Agenesisnail(s) → Q84.3
  • Leukonychia (punctata) (striata)congenital → Q84.4
  • Leukopathia unguiumcongenital → Q84.4
  • Onychauxiscongenital → Q84.5
  • Anomaly, anomalous (congenital) (unspecified type)nail → Q84.6
  • Clubnailcongenital → Q84.6
  • Displacement, displacednail (congenital) → Q84.6
  • Egg shell nailscongenital → Q84.6
  • Hypoplasia, hypoplasticnail(s) → Q84.6
  • Koilonychiacongenital → Q84.6
  • Longitudinal stripes or grooves, nailscongenital → Q84.6
  • Malformation (congenital)nail → Q84.6
  • Onychodystrophycongenital → Q84.6
  • Onychorrhexiscongenital → Q84.6
  • Persistence, persistent (congenital)nail(s), anomalous → Q84.6
  • Spading nailcongenital → Q84.6

21 more, longer entries are not listed; the search box finds them by word.

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