2022 ICD-10-CM Code C41.9
Malignant neoplasm of bone and articular cartilage, unspecified
Valid for Submission
| ICD-10: | C41.9 |
| Short Description: | Malignant neoplasm of bone and articular cartilage, unsp |
| Long Description: | Malignant neoplasm of bone and articular cartilage, unspecified |
Code Classification
C41.9 is a billable diagnosis code used to specify a medical diagnosis of malignant neoplasm of bone and articular cartilage, unspecified. The code C41.9 is valid during the fiscal year 2022 from October 01, 2021 through September 30, 2022 for the submission of HIPAA-covered transactions.
The ICD-10-CM code C41.9 might also be used to specify conditions or terms like bone tnm finding, bone tnm finding, bone tnm finding, bone tnm finding, bone tnm finding , carcinoma of bone, connective tissue, skin and breast, etc.
The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: bone (periosteum) ; bone (periosteum) cartilage NEC ; bone (periosteum) cuneiform ; cartilage (articular) (joint) NEC [See Also: Neoplasm, bone] ; joint NEC [See Also: Neoplasm, bone] ; skeleton, skeletal NEC ; etc
Unspecified diagnosis codes like C41.9 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
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 C41.9 are found in the index:
- - Osteitis - See Also: Osteomyelitis;
- - deformans - M88.9
- - in (due to)
- - malignant neoplasm of bone - C41.9
- - in (due to)
- - deformans - M88.9
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Bone TNM finding
- Bone TNM finding
- Bone TNM finding
- Bone TNM finding
- Bone TNM finding
- Carcinoma of bone, connective tissue, skin and breast
- Chondrosarcoma
- Chondrosarcoma of bone
- Diaphyseal medullary stenosis with bone malignancy
- Ewing's sarcoma of bone
- Extraskeletal mesenchymal chondrosarcoma
- Extraskeletal myxoid chondrosarcoma
- Large cell Ewing sarcoma of bone
- Local recurrence of malignant tumor of bone
- Macrocytosis - no anemia
- Malignant neoplasm of bone
- Malignant neoplasm of bone, connective tissue, skin and breast
- Malignant neoplasm of skeletal system
- Metastasis from malignant tumor of bone
- Non-anemic red cell disorder
- Osteosarcoma of bone
- Osteosarcoma, limb anomalies, erythroid macrocytosis syndrome
- Overlapping malignant neoplasm of bone and articular cartilage
- pM1a: Distant metastasis to lung
- pM1a: Distant metastasis to lung
- pM1b: Distant metastasis to site other than lung
- pM1b: Distant metastasis to site other than lung
- Primary chondrosarcoma of articular cartilage
- Primary chondrosarcoma of bone
- Primary malignant neoplasm of articular cartilage
- Primary malignant neoplasm of bone
- Primary osteosarcoma
- pT1: Tumor 5 cm or less in greatest dimension
- pT1: Tumor 8 cm or less in greatest dimension
- pT1: Tumor 8 cm or less in greatest dimension
- pT1a: Tumor 5 cm or less in greatest dimension, superficial tumor
- pT1b: Tumor 5 cm or less in greatest dimension, deep tumor
- pT2: Tumor more than 5 cm in greatest dimension
- pT2: Tumor more than 8 cm in greatest dimension
- pT2: Tumor more than 8 cm in greatest dimension
- pT2a: Tumor more than 5 cm in greatest dimension, superficial tumor
- pT2b: Tumor more than 5 cm in greatest dimension, deep tumor
- pT3: Discontinuous tumors in the primary bone site
- pT3: Discontinuous tumors in the primary bone site
- Sarcoma of bone
- Sarcoma of bone and connective tissue
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code C41.9 is grouped in the following groups for version MS-DRG V39.0 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 10/01/2021 through 09/30/2022.
| MS-DRG | MS-DRG Title | MCD | Relative Weight |
|---|---|---|---|
| 542 | PATHOLOGICAL FRACTURES AND MUSCULOSKELETAL AND CONNECTIVE TISSUE MALIGNANCY WITH MCC | 08 | 1.8053 |
| 543 | PATHOLOGICAL FRACTURES AND MUSCULOSKELETAL AND CONNECTIVE TISSUE MALIGNANCY WITH CC | 08 | 1.0433 |
| 544 | PATHOLOGICAL FRACTURES AND MUSCULOSKELETAL AND CONNECTIVE TISSUE MALIGNANCY WITHOUT CC/MCC | 08 | 0.7762 |
The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.
Convert C41.9 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code C41.9 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
- 170.9 - Malig neopl bone NOS (Approximate Flag)
Table of Neoplasms
The code C41.9 is included in the table of neoplasms by anatomical site. For each site there are six possible code numbers according to whether the neoplasm in question is malignant, benign, in situ, of uncertain behavior, or of unspecified nature. The description of the neoplasm will often indicate which of the six columns is appropriate.
Where such descriptors are not present, the remainder of the Index should be consulted where guidance is given to the appropriate column for each morphological (histological) variety listed. However, the guidance in the Index can be overridden if one of the descriptors mentioned above is present.
| Neoplasm, neoplastic | Malignant Primary |
Malignant Secondary |
CaInSitu | Benign | Uncertain Behavior |
Unspecified Behavior |
|---|---|---|---|---|---|---|
| »bone (periosteum) | C41.9 | C79.51 | D16.9 | D48.0 | D49.2 | |
| »bone (periosteum) »cartilage NEC | C41.9 | C79.51 | D16.9 | D48.0 | D49.2 | |
| »bone (periosteum) »cuneiform | C41.9 | C79.51 | D16.9 | D48.0 | D49.2 | |
| »cartilage (articular) (joint) NEC [See Also: Neoplasm, bone] | C41.9 | C79.51 | D16.9 | D48.0 | D49.2 | |
| »joint NEC [See Also: Neoplasm, bone] | C41.9 | C79.51 | D16.9 | D48.0 | D49.2 | |
| »skeleton, skeletal NEC | C41.9 | C79.51 | D16.9 | D48.0 | D49.2 |
Information for Patients
Cancer
Cancer begins in your cells, which are the building blocks of your body. Normally, your body forms new cells as you need them, replacing old cells that die. Sometimes this process goes wrong. New cells grow even when you don't need them, and old cells don't die when they should. These extra cells can form a mass called a tumor. Tumors can be benign or malignant. Benign tumors aren't cancer while malignant ones are. Cells from malignant tumors can invade nearby tissues. They can also break away and spread to other parts of the body.
Cancer is not just one disease but many diseases. There are more than 100 different types of cancer. Most cancers are named for where they start. For example, lung cancer starts in the lung, and breast cancer starts in the breast. The spread of cancer from one part of the body to another is called metastasis. Symptoms and treatment depend on the cancer type and how advanced it is. Most treatment plans may include surgery, radiation and/or chemotherapy. Some may involve hormone therapy, immunotherapy or other types of biologic therapy, or stem cell transplantation.
NIH: National Cancer Institute
[Learn More in MedlinePlus]
Primary Bone Cancer Learn about the types of bone tumors and the methods used to diagnose and treat cancers that form from bone tissue.
[Learn More in MedlinePlus]
Code History
- 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 (First year ICD-10-CM implemented into the HIPAA code set)