ICD10 code of Fibrodysplasia ossificans progressiva and ICD9 code

Fibrodysplasia ossificans progressiva (FOP) is classified under the ICD-10 code M61.1, specifically M61.10 for unspecified site. In the older ICD-9 coding system, Fibrodysplasia ossificans progressiva is identified by the code 728.11.

What exactly is Fibrodysplasia ossificans progressiva?

Fibrodysplasia ossificans progressiva is an ultra-rare, disabling genetic condition characterized by the abnormal transformation of muscle and connective tissue into bone. This process, known as heterotopic ossification, leads to the formation of a second skeleton that progressively restricts movement. Currently, 49 individuals within the DiseaseMaps.org community are living with the challenges of Fibrodysplasia ossificans progressiva, sharing their experiences with this complex condition.

How is Fibrodysplasia ossificans progressiva diagnosed?

Diagnosis of Fibrodysplasia ossificans progressiva is primarily clinical, often identified by the hallmark presence of malformed great toes at birth. While genetic testing can confirm a mutation in the ACVR1 gene, physicians must be extremely cautious; biopsies or surgical interventions to remove bone growth can trigger catastrophic flare-ups of new bone formation. Diagnostic imaging is generally limited to low-dose X-rays to avoid trauma.

What are the primary challenges for patients?

The progression of Fibrodysplasia ossificans progressiva varies significantly between individuals, but the impact on daily life is profound. Key clinical considerations include:

• Heterotopic Ossification: Progressive bone formation in muscles, tendons, and ligaments.


• Joint Immobilization: Permanent loss of range of motion in major joints, including the jaw, spine, and limbs.


• Flare-ups: Episodes of painful soft tissue swelling often triggered by minor trauma, viral infections, or intramuscular injections.


• Management Limitations: Currently, no curative treatment exists, so care focuses on pain management, injury prevention, and physical therapy to maintain existing mobility.

Next steps

• Consult with a specialist in Orthopaedics or a metabolic bone disease center experienced in managing Fibrodysplasia ossificans progressiva.


• Connect with the DiseaseMaps.org community to share experiences with other patients and families.


• Stay informed about clinical trials and natural history studies through the International FOP Association (IFOPA).

Medical disclaimer: This content is for informational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician regarding a medical condition.

References

• Orphanet: Fibrodysplasia ossificans progressiva (ORPHA:337)


• NIH Genetic and Rare Diseases Information Center (GARD): Fibrodysplasia ossificans progressiva


• OMIM (Online Mendelian Inheritance in Man): #135100


• International FOP Association (IFOPA): Medical resources and patient support