Sarcoma ICD-10-CM Codes

Explore updated Sarcoma ICD-10-CM codes for 2025. Learn about malignant neoplasms, connective and soft tissue tumors, diagnosis, billing, and treatment.

By Wynona Jugueta on Aug 8, 2025.

Fact Checked by Karina Jimenea.

Use Code

What ICD-10 codes are used for sarcoma?

Sarcomas are a diverse group of malignant neoplasms that develop from connective and soft tissue structures, including bones, muscles, fat, blood vessels, nerves, and the autonomic nervous system. Using the ICD-10-CM system, healthcare providers assign highly specific diagnosis codes to accurately document the tumor’s site, structure, and behavior for medical records, billing, and treatment planning.

Here are some commonly used ICD-10-CM codes for various types of sarcomas affecting connective tissue, soft tissue, and related tissue:

C40.00 – Malignant neoplasm of scapula and long bones of unspecified upper limb (e.g., shoulder blade, humerus), often involving articular cartilage or surrounding soft tissue.
C49.0 – Malignant neoplasm of connective and soft tissue of head, face, and neck
C49.10 – Malignant neoplasm of connective and soft tissue of unspecified upper limb (including the shoulder, potentially impacting muscle, sheath, or peripheral nerves)
C41.4 – Malignant neoplasm of pelvic bones, sacrum, and coccyx (including sarcomas near the lower limb and hip regions)
C49.4 – Malignant neoplasm of connective and soft tissue of abdomen

Other important sarcoma-related ICD codes include:

C46.9 – Kaposi’s sarcoma, unspecified (an unspecified malignant neoplasm commonly affecting the skin, lymph nodes, or mouth).
C96.4 – Sarcoma of dendritic cells (accessory cells)
C22.4 – Other sarcomas of liver

Which sarcoma ICD codes are billable?

All sarcoma-related codes above are billable as of 2025. Each code reflects a specified part of the body affected by a tumor, ensuring precision in clinical reporting and billing.

Clinical information

Rarity: Sarcomas are rare malignancies, representing less than 1% of all adult cancers but a higher incidence among pediatric diseases.
Risk factors: Although the exact cause of many sarcomas is unknown, genetic syndromes like Li-Fraumeni, prior radiation exposure, and chemical exposures are known risk factors.
Symptoms: Clinical signs vary depending on tumor location but often include painless lumps, swelling, or pain due to pressure on nerves and autonomic nervous system structures.
Diagnosis: Accurate diagnosis typically involves imaging such as X-rays, CT scans, MRIs, and biopsy to evaluate the neoplasm and identify the involvement of structures like cartilage, bone, skin, or muscle.
Treatment options: Treatment can include surgical procedures to remove the tumor, chemotherapy, radiation therapy, and targeted therapies, depending on sarcoma type, tumor stage, and location (e.g., breast, liver, rectum, middle ear, or trunk).
Providers must follow the 2025 ICD-10-CM Official Guidelines for diagnosis code sequencing and reporting, including proper use for sarcomas that develop or occur across other and unspecified sites.

Synonyms include

Connective tissue cancer
Bone tumor
Soft tisue cancer
Malignant fibrous tumor
Mesenchymal cancer
Soft tissue sarcoma

Commonly asked questions

A sarcoma ICD-10-CM code should be used when a patient is diagnosed with a malignant tumor originating from connective tissues like bone, muscle, fat, or nerves. The code selected must match the specific anatomical location and type of sarcoma documented by the healthcare provider.

Common treatments for sarcomas include surgical removal of the tumor, radiation therapy, chemotherapy, and targeted therapies based on the tumor's type and stage. Treatment plans are typically individualized to maximize effectiveness and preserve surrounding healthy tissues.

A sarcoma diagnosis code indicates that a patient has a confirmed malignant tumor arising from connective or soft tissues. It helps standardize documentation, supports appropriate billing, and ensures patients receive the correct care based on tumor location and pathology.

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