2019 ICD-10-CM Diagnosis Code Q84.5

Enlarged and hypertrophic nails

    2016 2017 2018 2019 Billable/Specific Code POA Exempt
  • Q84.5 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM Q84.5 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of Q84.5 - other international versions of ICD-10 Q84.5 may differ.
Applicable To
  • Congenital onychauxis
  • Pachyonychia
The following code(s) above Q84.5 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to Q84.5:
  • Q00-Q99
    2019 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
Approximate Synonyms
  • Congenital onychauxis
  • Congenital pachyonychia
  • Onychauxis, congenital
  • Pachyonychia congenita syndrome
Clinical Information
  • Thickened nails.
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Q84.5 is considered exempt from POA reporting.
ICD-10-CM Q84.5 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 606 Minor skin disorders with mcc
  • 607 Minor skin disorders without mcc

Convert Q84.5 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change

Diagnosis Index entries containing back-references to Q84.5:
  • Hypertrophy, hypertrophic
    • nail L60.2
      ICD-10-CM Diagnosis Code L60.2

      Onychogryphosis

        2016 2017 2018 2019 Billable/Specific Code
      • congenital Q84.5
  • Onychauxis L60.2
    ICD-10-CM Diagnosis Code L60.2

    Onychogryphosis

      2016 2017 2018 2019 Billable/Specific Code
    • congenital Q84.5
  • Pachyonychia Q84.5 (congenital)
  • Thickening
    • nail L60.2
      ICD-10-CM Diagnosis Code L60.2

      Onychogryphosis

        2016 2017 2018 2019 Billable/Specific Code
      • congenital Q84.5

ICD-10-CM Codes Adjacent To Q84.5
Q83.2 Absent nipple
Q83.3 Accessory nipple
Q83.8 Other congenital malformations of breast
Q83.9 Congenital malformation of breast, unspecified
Q84 Other congenital malformations of integument
Q84.0 Congenital alopecia
Q84.1 Congenital morphological disturbances of hair, not elsewhere classified
Q84.2 Other congenital malformations of hair
Q84.3 Anonychia
Q84.4 Congenital leukonychia
Q84.5 Enlarged and hypertrophic nails
Q84.6 Other congenital malformations of nails
Q84.8 Other specified congenital malformations of integument
Q84.9 Congenital malformation of integument, unspecified
Q85 Phakomatoses, not elsewhere classified
Q85.0 Neurofibromatosis (nonmalignant)
Q85.00 Neurofibromatosis, unspecified
Q85.01 Neurofibromatosis, type 1
Q85.02 Neurofibromatosis, type 2
Q85.03 Schwannomatosis
Q85.09 Other neurofibromatosis

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.