2024 ICD-10-CM Diagnosis Code Q79.8

Other congenital malformations of musculoskeletal system

ICD-10-CM Code:
Q79.8
ICD-10 Code for:
Other congenital malformations of musculoskeletal system
Is Billable?
Yes - Valid for Submission
Chronic Condition Indicator: [1]
Chronic
Code Navigator:

Code Classification

  • Congenital malformations, deformations and chromosomal abnormalities
    (Q00-Q99)
    • Congenital malformations and deformations of the musculoskeletal system
      (Q65-Q79)
      • Congenital malformations of musculoskeletal system, not elsewhere classified
        (Q79)

Q79.8 is a billable diagnosis code used to specify a medical diagnosis of other congenital malformations of musculoskeletal system. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.

Approximate Synonyms

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

  • Aberrant forearm flexor muscle
  • Aberrant muscle of the upper limb
  • Accessory ossification center
  • Accessory skeletal muscle
  • Alopecia, onychodysplasia, hypohidrosis, deafness ectodermal dysplasia
  • Amyotrophia congenita
  • Angioosteohypotrophic syndrome
  • Aplasia of muscle
  • Autosomal dominant myopia, midfacial retrusion, sensorineural hearing loss, rhizomelic dysplasia syndrome
  • Chondrolysis of articular cartilage
  • Congenital abnormal fusion of carpal bone
  • Congenital absence of abdominal muscle
  • Congenital absence of left pectoral muscle
  • Congenital absence of muscle AND/OR tendon
  • Congenital absence of pectoral muscle
  • Congenital absence of quadriceps muscle
  • Congenital absence of right pectoral muscle
  • Congenital absence of skeletal bone
  • Congenital absence of skeletal muscle
  • Congenital absence of soft tissue of distal phalanx of finger
  • Congenital absence of tendon
  • Congenital anomaly of body cavity
  • Congenital anomaly of cartilage
  • Congenital anomaly of hyoid bone
  • Congenital bilateral short Achilles tendons
  • Congenital chondrolysis
  • Congenital contracture of gastrocnemius muscle
  • Congenital contracture of left gastrocnemius muscle
  • Congenital contracture of right gastrocnemius muscle
  • Congenital dysplasia of bone caused by drug
  • Congenital hepatomegaly
  • Congenital hyperplasia of muscle
  • Congenital hyperplasia of muscle
  • Congenital hypoplasia of hyoid bone
  • Congenital muscular hypertrophy-cerebral syndrome
  • Congenital short Achilles tendon
  • Congenital short costocoracoid ligament
  • Congenital short left Achilles tendon
  • Congenital short quadriceps
  • Congenital short right Achilles tendon
  • Congenital shortening of tendon
  • Connective tissue disorder due to lysyl hydroxylase-3 deficiency
  • Constricting band of extremity
  • Constriction ring syndrome
  • Contracture of muscle of left lower leg
  • Contracture of muscle of right lower leg
  • Dermatoosteolysis Kirghizian type
  • Ectopic bone tissue, congenital
  • Geroderma osteodysplastica
  • Hadziselimovic syndrome
  • Hypoplasia of muscle
  • Incomplete ossification of hyoid bone
  • Intellectual disability, developmental delay, contracture syndrome
  • KBG syndrome
  • King Denborough syndrome
  • Micromelia
  • Micromelia
  • Muscle contracture of left ankle
  • Muscle contracture of right ankle
  • Muscular hypertrophy, hepatomegaly, polyhydramnios syndrome
  • Myostatin related hypertrophy of muscle
  • Poland anomaly
  • Polyneuropathy, intellectual disability, acromicria, premature menopause syndrome
  • Premature ovarian failure
  • Segmental progressive overgrowth syndrome with fibroadipose hyperplasia
  • Skeletal dysplasia
  • Thoracoceloschisis

Clinical Classification

Tabular List of Diseases and Injuries

The following annotation back-references are applicable to this diagnosis code. The Tabular List of Diseases and Injuries is a list of ICD-10-CM codes, organized "head to toe" into chapters and sections with coding notes and guidance for inclusions, exclusions, descriptions and more.


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.
  • Absence of muscle
  • Absence of tendon
  • Accessory muscle
  • Amyotrophia congenita
  • Congenital constricting bands
  • Congenital shortening of tendon
  • Poland syndrome

Index to Diseases and Injuries References

The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).

Present on Admission (POA)

Q79.8 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 IndicatorReason 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 Q79.8 to ICD-9-CM

  • ICD-9-CM Code: 756.81 - Absence of muscle/tendon
    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.
  • ICD-9-CM Code: 756.82 - Accessory muscle
    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.
  • ICD-9-CM Code: 756.89 - Soft tissue anomaly NEC
    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.
  • ICD-9-CM Code: 756.9 - Musculoskel anom NEC/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.

Footnotes

[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:

  • The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
  • The condition places limitations on self-care, independent living, and social interactions.