Short answer · Medically reviewed summary · Last updated: 2026-04-07
The ICD-10 code for Poland syndrome is Q79.8 (Other congenital malformations of musculoskeletal system), while the ICD-9 code is 756.89 (Other specified anomalies of muscle). These codes are essential for medical documentation, insurance billing, and clinical tracking for individuals living with this condition. What is the clinical presentation of Poland syndrome? Poland syndrome is a rare congenital condition characterized by the unilateral absence or underdevelopment of the pectoralis major muscle.
9 people with Poland Syndrome have shared their first-person experience on this question at DiseaseMaps.
The ICD-10 code for Poland syndrome is Q79.8 (Other congenital malformations of musculoskeletal system), while the ICD-9 code is 756.89 (Other specified anomalies of muscle). These codes are essential for medical documentation, insurance billing, and clinical tracking for individuals living with this condition.
Poland syndrome is a rare congenital condition characterized by the unilateral absence or underdevelopment of the pectoralis major muscle. In many cases, this is accompanied by ipsilateral hand anomalies, such as syndactyly (webbed fingers) or brachydactyly (shortened fingers). While the severity varies significantly among the 727 community members on DiseaseMaps.org, the physical manifestations often extend to the rib cage, breast tissue, and subcutaneous fat. Because Poland syndrome can impact physical appearance and limb function, it is often diagnosed in infancy or during the adolescent growth spurt when asymmetries become more pronounced.
Current clinical research suggests that Poland syndrome is typically a sporadic occurrence, meaning it occurs randomly in individuals with no family history of the condition. While rare familial cases have been reported, there is no single gene identified as the primary cause of Poland syndrome. Geneticists often discuss the "vascular disruption theory," which posits that an interruption of blood flow to the subclavian artery during early embryonic development (around the 6th week of gestation) may trigger the development of Poland syndrome. Because the condition is rarely inherited, the recurrence risk for siblings of an affected child is generally considered very low.
Diagnosis of Poland syndrome is primarily clinical, based on a physical examination by a pediatrician, orthopedist, or plastic surgeon. Imaging studies, such as MRI or CT scans, are sometimes utilized to assess the extent of muscle hypoplasia and thoracic skeletal involvement. Management is highly personalized and depends on the functional and aesthetic concerns of the patient. Treatment options for Poland syndrome may include:
The long-term prognosis for individuals with Poland syndrome is generally excellent. While the condition involves structural differences, it does not typically affect life expectancy or cognitive development. Many people with Poland syndrome lead active, full lives, participating in athletics and professional careers. The emotional journey, however, can be significant; connecting with others who share similar experiences is often cited by our community members as a vital part of navigating the psychosocial aspects of Poland syndrome.
Medical disclaimer: This content is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician or other qualified health provider with any questions regarding a medical condition.