ICD-10 Diagnosis Code Q85.9

Phakomatosis, unspecified

Diagnosis Code Q85.9

ICD-10: Q85.9
Short Description: Phakomatosis, unspecified
Long Description: Phakomatosis, unspecified
This is the 2017 version of the ICD-10-CM diagnosis code Q85.9

Valid for Submission
The code Q85.9 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Other congenital malformations (Q80-Q89)
      • Phakomatoses, not elsewhere classified (Q85)

Information for Medical Professionals

Diagnostic Related Groups
The diagnosis code Q85.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG V34.0)

  • 826 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH MAJOR O.R. PROCEDURE WITH MCC
  • 827 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH MAJOR O.R. PROCEDURE WITH CC
  • 828 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH MAJOR O.R. PROCEDURE WITHOUT CC/MCC
  • 829 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH OTHER O.R. PROCEDURE WITH CC/MCC
  • 830 - MYELOPROLIFERATIVE DISORDERS OR POORLY DIFFERENTIATED NEOPLASMS WITH OTHER O.R. PROCEDURE WITHOUT CC/MCC

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
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.

The code Q85.9 is exempt from POA reporting.

Synonyms
  • Congenital erector pili hamartoma
  • Congenital hamartoma
  • Congenital hamartoma of skin
  • Hamartoma
  • Hamartoma of brain
  • Hamartoma of hypothalamus
  • Hamartoma of integument
  • Hamartoma of lung
  • Hamartoma of lung
  • Hamartoma of muscle
  • Hamartoma of pilosebaceous apparatus
  • Hamartoma of pituitary and hypothalamus
  • Hamartoma of retina
  • Hamartoma of skin appendage
  • Hamartoma of tongue
  • Hypothalamic neuronal hamartoma
  • Multiple hamartoma of lung
  • Neurocutaneous syndrome
  • Paving stone nevus
  • Port-wine stain in proteus syndrome
  • Proteus syndrome
  • Solitary hamartoma of lung
  • Vascular hamartoma of skin
  • Vascular hamartomas

Index of Diseases and Injuries
References found for the code Q85.9 in the Index of Diseases and Injuries:


Information for Patients


Genetic Disorders

Genes are the building blocks of heredity. They are passed from parent to child. They hold DNA, the instructions for making proteins. Proteins do most of the work in cells. They move molecules from one place to another, build structures, break down toxins, and do many other maintenance jobs.

Sometimes there is a mutation, a change in a gene or genes. The mutation changes the gene's instructions for making a protein, so the protein does not work properly or is missing entirely. This can cause a medical condition called a genetic disorder.

You can inherit a gene mutation from one or both parents. A mutation can also happen during your lifetime.

There are three types of genetic disorders:

  • Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.
  • Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed. Chromosomes are the structures that hold our genes. Down syndrome is a chromosomal disorder.
  • Complex disorders, where there are mutations in two or more genes. Often your lifestyle and environment also play a role. Colon cancer is an example.

Genetic tests on blood and other tissue can identify genetic disorders.

NIH: National Library of Medicine

  • Genetics


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