2024 ICD-10-CM Diagnosis Code Q70.9

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

• 2q partial trisomy syndrome
• Acrocephalosyndactyly type V
• Acrocephalosyndactyly type V
• Acrocephalosyndactyly type V
• Anal atresia
• Ankylosis of joint of finger
• Ankylosis of joint of finger of left hand
• Ankylosis of joint of finger of right hand
• Ankylosis of joint of hand
• Ankylosis of proximal interphalangeal joint
• Aphalangy and syndactyly with microcephaly syndrome
• Bilateral distal interphalangeal joint symphalangism
• Bilateral proximal symphalangism
• Bilateral syndactyly of toes
• Blepharophimosis, ptosis, esotropia, syndactyly, short stature syndrome
• Brachydactyly and distal symphalangism syndrome
• Brachymesophalangia
• Cenani Lenz syndrome
• Cleft hand with syndactyly
• Congenital anomaly of lobe of ear
• Congenital blepharophimosis
• Congenital bony fusion of phalanges
• Congenital cleft hand
• Congenital clinodactyly
• Congenital clinodactyly of finger
• Congenital clinodactyly of little finger
• Congenital malformation of the eyebrow
• Congenital nystagmus
• Distal interphalangeal joint symphalangism
• Distal interphalangeal joint symphalangism
• Duplication of eyebrow and syndactyly syndrome
• Ectodermal dysplasia syndactyly syndrome
• Ectodermal dysplasia, syndactyly and pili torti
• FBLN1-related developmental delay, central nervous system anomaly, syndactyly syndrome
• Fibular aplasia, tibial campomelia, oligo-syndactyly syndrome
• Mesoaxial synostotic syndactyly with phalangeal reduction syndrome
• Partial trisomy of chromosome 2
• Pendular nystagmus
• Pfeiffer syndrome type 1
• Pfeiffer syndrome type 2
• Pfeiffer syndrome type 3
• Polysyndactyly and cardiac malformation syndrome
• Proximal interphalangeal joint symphalangism
• STAR syndrome
• Symphalangism
• Symphalangism
• Symphalangism Cushing type
• Symphalangism with multiple anomalies of hands and feet syndrome
• Syndactyly
• Syndactyly of fingers of bilateral hands
• Syndactyly of thumb
• Syndactyly type 1
• Syndactyly type 2
• Syndactyly type 4
• Syndactyly type 5
• Syndactyly, camptodactyly and clinodactyly of fifth fingers, bifid toes syndrome
• Syndactyly, nystagmus syndrome due to 2q31.1 microduplication
• Syndactyly, polydactyly, ear lobe syndrome
• Telecanthus

Clinical Information

• Poland Syndrome

  a syndrome which is characterized by symbrachydactyly and aplasia of the sternal head of pectoralis major.

• Syndactyly

  a congenital anomaly of the hand or foot, marked by the webbing between adjacent fingers or toes. syndactylies are classified as complete or incomplete by the degree of joining. syndactylies can also be simple or complex. simple syndactyly indicates joining of only skin or soft tissue; complex syndactyly marks joining of bony elements.

• Acrocephalosyndactyly

  a genetic disorder characterized by craniosynostosis and fusion of the fingers and toes.

• Fraser Syndrome|Cryptophthalmos-Syndactyly Syndrome

  a rare, autosomal recessive inherited disorder caused by mutations in the fras1, frem2, or grip1 genes. it is characterized by the presence of cryptophthalmos, cutaneous syndactyly, and genitourinary abnormalities.

• GJA1 wt Allele|AVSD3|CMDR|CX43|DFNB38|GJAL|Gap Junction Protein, Alpha 1, 43kDa (Connexin 43) Gene|Gap Junction Protein, Alpha 1, 43kDa wt Allele|Gap Junction Protein, Alpha-1 Gene|Gap Junction Protein, Alpha-Like Gene|HLHS1|HSS|ODDD|Oculodentodigital Dysplasia (Syndactyly Type III) Gene

  human gja1 wild-type allele is located in the vicinity of 6q22.31 and is approximately 14 kb in length. this allele, which encodes gap junction alpha-1 protein, plays a role in the modulation of the activity of gap junctions. mutation of the gene is associated with atrioventricular septal defect 3, autosomal recessive craniometaphyseal dysplasia, hypoplastic left heart syndrome 1, oculodentodigital dysplasia and syndactyly, type iii.

• GLI3 Gene|GLI-Kruppel Family Member GLI3 (Greig Cephalopolysyndactyly Syndrome) Gene|GLI3|GLI3

  this gene plays a regulatory role in limb development and is involved in sonic hedgehog signal transduction.

• GLI3 wt Allele|GCPS|GLI-Kruppel Family Member 3|GLI-Kruppel Family Member GLI3 (Greig Cephalopolysyndactyly Syndrome) wt Allele|GLI3|PAP-A|PAPA|PHS

  human gli3 wild-type allele is located in the vicinity of 7p13 and is approximately 272 kb in length. this allele, which encodes zinc finger protein gli3, plays a role in the regulation of sonic hedgehog-dependent transcription of specific genes during the development of multiple organ systems. this gene is the site of a mutation that is linked to greig cephalopolysyndactyly syndrome.

• Greig Syndrome|GCPS|Greig Cephalopolysyndactyly Syndrome|Greig Cephalosyndactyly Syndrome|Greig's Syndrome

  an autosomal dominant genetic disorder caused by mutations in the gli3 gene. it is characterized by physical abnormalities of the fingers and/or toes (extra fingers and/ or toes, fusion of the fingers and/or toes), large size head with prominent forehead and hypertelorism.

• Polysyndactyly

  a rare anatomical malformation characterized by polydactyly (extra fingers or toes) and syndactyly (webbed fingers or toes).

• Sclerosteosis|Cortical Hyperostosis with Syndactyly|Cortical Hyperostosis with Syndactyly

  an autosomal recessive form of craniotubular hyperostosis due to loss-of-function mutation(s) in the sost gene, encoding sclerostin. clinical features include tall stature, enlarged jaw and facial bones, and cranial nerve compression leading to hearing loss and facial palsy. about two-thirds of patients have syndactyly and/or nail malformations. increased intracranial pressure due to the thickened calvaria and skull base can occur.

• Syndactyly

  a congenital condition characterized by webbing between the fingers and/or toes, joining the digits together. in rare cases, the joining of the fingers or toes may involve bony fusion between the digits. common causes include down syndrome and hereditary syndactyly.

• TWIST1 Gene|TWIST1|TWIST1|Twist Homolog 1 (Acrocephalosyndactyly 3; Saethre-Chotzen Syndrome) (Drosophila) Gene

  this gene plays a role in regulation of transcription and the inhibition of apoptosis. it is also involved in the control of morphogenesis during embryonic development.

• TWIST1 wt Allele|ACS3|BPES2|BPES3|SCS|TWIST|Twist Homolog 1 (Acrocephalosyndactyly 3; Saethre-Chotzen Syndrome) (Drosophila) wt Allele

  human twist1 wild-type allele is located in the vicinity of 17p13.3 and is approximately 16 kb in length. this allele, which encodes twist-related protein 1, plays a role in the regulation of both transcription and cell lineage determination. mutations in the gene are associated with saethre-chotzen, robinow-sorauf, and baller-gerold syndromes.

• Twist-Related Protein 1|Acrocephalosyndactyly 3 Protein|Class A Basic Helix-Loop-Helix Protein 38|H-Twist|TWIST|TWIST1|TWIST1 Protein|Twist Homolog|Twist Homolog 1|Twist Related Protein 1|bHLHa38

  twist-related protein 1 (202 aa, ~21 kda) is encoded by the human twist1 gene. this protein plays a role in the negative regulation of both transcription and myogenesis.

• Type I Acrocephalosyndactyly|Acrocephalosyndactyly Type I|Apert Syndrome

  an autosomal dominant inherited type of acrocephalosyndactyly caused by mutations in the fgfr2 gene. it is characterized by early closure of the sutures between the skull bones, bulging eyes, low-set ears, fusion of the second, third, and forth fingers, and fusion of the toes.

• Type II Acrocephalopolysyndactyly|Acrocephalopolysyndactyly Type II|Acrocephalopolysyndactyly Type II|Carpenter 's Syndrome|Carpenter Syndrome|Carpenter Syndrome

  an extremely rare autosomal recessive syndrome characterized by premature closure of cranial sutures leading to cone-shaped head, fusion of the digits, and the presence of more digits than normal. it may be associated with heart defects, single horseshoe-shaped kidney, short stature, undescended testes, and mild mental retardation.

• Type III Acrocephalosyndactyly|Acrocephalosyndactyly Type III|Saethre-Chotzen Syndrome|Saethre-Chotzen Syndrome

  a rare autosomal dominant syndrome caused by mutations in the twist1 gene. it is characterized by premature closure of skull bones resulting in abnormally shaped head, high forehead, hypertelorism, and facial asymmetry. it may be associated with fusion of certain fingers or toes.

• Type V Acrocephalosyndactyly|Acrocephalosyndactyly Type V|Noack Syndrome|Pfeiffer Syndrome

  an autosomal dominant inherited type of acrocephalosyndactyly caused by mutations in the fgfr1 or fgfr2 genes. it is characterized by early closure of the sutures between the skull bones, bulging and wide-set eyes, broad thumbs, big toes, and partial syndactyly in the hands and toes.

Q70.9 is grouped with Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Present on Admission (POA)

Q70.9 is exempt from POA reporting - 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. Review other POA exempt codes here.

CMS POA Indicator Options and Definitions

Convert Q70.9 to ICD-9-CM

• ICD-9-CM Code: 755.10 - Syndactyly, multiple/NOS
  Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.

Code History

• FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
• FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
• FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
• FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
• FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
• FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
• FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
• FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
• FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.