ICD-10-CM Code Q73.8

Other reduction defects of unspecified limb(s)

Version 2020 Billable Code POA Exempt

Valid for Submission

Q73.8 is a billable code used to specify a medical diagnosis of other reduction defects of unspecified limb(s). The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code Q73.8 might also be used to specify conditions or terms like 10q partial trisomy syndrome, adactyly, ankylosis of joint of hand, aphalangy and syndactyly with microcephaly syndrome, aphalangy, hemivertebra, urogenital, intestinal dysgenesis syndrome, brachydactyly and distal symphalangism syndrome, etc The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

Short Description:Other reduction defects of unspecified limb(s)
Long Description:Other reduction defects of unspecified limb(s)

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code Q73.8:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Longitudinal reduction deformity of unspecified limb(s)
  • Ectromelia of limb NOS
  • Hemimelia of limb NOS
  • Reduction defect of limb NOS

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Q73.8 are found in the index:


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

  • 10q partial trisomy syndrome
  • Adactyly
  • Ankylosis of joint of hand
  • Aphalangy and syndactyly with microcephaly syndrome
  • Aphalangy, hemivertebra, urogenital, intestinal dysgenesis syndrome
  • Brachydactyly and distal symphalangism syndrome
  • Brachydactyly and preaxial hallux varus syndrome
  • Brachydactyly syndrome type B
  • Brachydactyly syndrome type B
  • Brachydactyly type A2
  • Brachydactyly with syndactyly Zhao type
  • Brachydactyly, mesomelia, intellectual disability, heart defect syndrome
  • Brachymesophalangia
  • Coloboma of macula with brachydactyly type B syndrome
  • Coloboma of retina
  • Congenital anomaly of macula
  • Congenital coloboma of macula lutea
  • Congenital hallux varus
  • Congenital hypoplasia of breast
  • Congenital microgastria
  • Congenital microgastria with limb reduction defect syndrome
  • Cono-spondylar dysplasia
  • Craniomicromelic syndrome
  • Distal interphalangeal joint symphalangism
  • Distal limb deficiency with micrognathia syndrome
  • Ectromelia
  • Exostosis, anetoderma, brachydactyly type E syndrome
  • Heart defect and limb shortening syndrome
  • Hemimelia
  • Liebenberg syndrome
  • Limb mammary syndrome
  • Longitudinal deficiency of limb
  • Longitudinal deficiency of part of limb
  • Meromicrosomia
  • Mesoaxial synostotic syndactyly with phalangeal reduction syndrome
  • Microlissencephaly micromelia syndrome
  • Micromelia
  • Micromelia
  • Partial trisomy of chromosome 10
  • Robin sequence
  • Robin sequence and oligodactyly syndrome
  • Rudimentary digit
  • Severe intellectual disability, epilepsy, anal anomaly, distal phalangeal hypoplasia syndrome
  • Skeletal dysplasia brachydactyly syndrome
  • Spondyloepimetaphyseal dysplasia, short limb, abnormal calcification syndrome
  • Symbrachydactyly
  • Symphalangism
  • Temtamy preaxial brachydactyly syndrome
  • Thumb stiffness, brachydactyly, intellectual disability syndrome
  • Trisomy 10
  • Uncombable hair, retinal pigmentary dystrophy, dental anomaly and brachydactyly syndrome
  • Withered limb

Diagnostic Related Groups

The ICD-10 code Q73.8 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Present on Admission (POA)

Q73.8 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
POA Indicator CodePOA Reason for CodeCMS will pay the CC/MCC DRG?
YDiagnosis was present at time of inpatient admission.YES
NDiagnosis was not present at time of inpatient admission.NO
UDocumentation insufficient to determine if the condition was present at the time of inpatient admission.NO
WClinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission.YES
1Unreported/Not used - Exempt from POA reporting. NO

Convert Q73.8 to ICD-9

  • 755.4 - Reduct deform limb NOS (Approximate Flag)

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Congenital malformations and deformations of the musculoskeletal system (Q65-Q79)
      • Reduction defects of unspecified limb (Q73)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients

Birth Defects

A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.

A birth defect may affect how the body looks, works or both. Some birth defects like cleft lip or neural tube defects are structural problems that can be easy to see. To find others, like heart defects, doctors use special tests. Birth defects can range from mild to severe. Causes can include

  • Genetics
  • Exposures to medicines or chemicals. For example, alcohol abuse can cause fetal alcohol syndrome.
  • Infections during pregnancy
  • Certain medicines. Before you get pregnant, talk to your health care provider about any medicines you take.
  • Not getting enough of certain nutrients. For example, not getting enough folic acid before and during pregnancy is a key factor in causing neural tube defects.

For most birth defects, the cause is unknown.

Health care providers can diagnose certain birth defects during pregnancy, with prenatal tests. That's why it important to get regular prenatal care. Other birth defects may not be found until after the baby is born. Sometimes the defect is obvious right away. Other times, the health care provider may not discover it until later in life.

Babies with birth defects often need special care and treatments. The treatments may include surgery, medicines, assistive devices, and therapies.

Centers for Disease Control and Prevention

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