ICD-10-CM Code D16.9

Benign neoplasm of bone and articular cartilage, unspecified

Version 2021 Billable Code Neoplasm Benign

Valid for Submission

D16.9 is a billable code used to specify a medical diagnosis of benign neoplasm of bone and articular cartilage, unspecified. The code is valid for the fiscal year 2021 for the submission of HIPAA-covered transactions. The ICD-10-CM code D16.9 might also be used to specify conditions or terms like ameloblastoma of jaw, benign chondroblastoma of bone, benign chondrogenic neoplasm, benign chondrogenic neoplasm of bone and articular cartilage of limb, benign neoplasm of articular cartilage, benign neoplasm of bone, etc

The following anatomical sites found in the Table of Neoplasms apply to this code given the correct histological behavior: Neoplasm, neoplastic bone (periosteum) ; Neoplasm, neoplastic bone (periosteum) cartilage NEC ; Neoplasm, neoplastic bone (periosteum) cuneiform ; Neoplasm, neoplastic bone (periosteum) limb NEC ; Neoplasm, neoplastic cartilage (articular) (joint) NEC [See Also: Neoplasm, bone] ; Neoplasm, neoplastic joint NEC [See Also: Neoplasm, bone] ; Neoplasm, neoplastic skeleton, skeletal NEC ; etc

Short Description:Benign neoplasm of bone and articular cartilage, unspecified
Long Description:Benign neoplasm of bone and articular cartilage, unspecified


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

  • Ameloblastoma of jaw
  • Benign chondroblastoma of bone
  • Benign chondrogenic neoplasm
  • Benign chondrogenic neoplasm of bone and articular cartilage of limb
  • Benign neoplasm of articular cartilage
  • Benign neoplasm of bone
  • Benign osteogenic neoplasm of articular cartilage of limb
  • Benign osteogenic neoplasm of bone of limb
  • Bizarre parosteal osteochondromatous proliferation
  • Chondroma of bone
  • Chondroma of periosteum
  • Chondromatosis
  • Chondromyxoid fibroma of bone
  • Enchondroma of bone
  • Endosteal osteoma
  • Fibro-osteoma
  • Intraosseous lipoma
  • Multiple osteochondroma
  • Osteoblastoma of bone
  • Osteochondroma
  • Osteochondroma of bone
  • Osteoma mucosae
  • Osteoma of periosteum
  • Parosteal lipoma
  • Subungual exostosis

Diagnostic Related Groups

The ICD-10 code D16.9 is grouped in the following groups for version MS-DRG V38.0 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 10/01/2020 through 09/30/2021.


Convert D16.9 to ICD-9

  • 213.9 - Benign neo bone NOS

Code Classification

  • Neoplasms (C00–D48)
    • Benign neoplasms, except benign neuroendocrine tumors (D10-D36)
      • Benign neoplasm of bone and articular cartilage (D16)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021

Table of Neoplasms

The code D16.9 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
CaInSitu Benign Uncertain
»Neoplasm, neoplastic
  »bone (periosteum)
»Neoplasm, neoplastic
  »bone (periosteum)
    »cartilage NEC
»Neoplasm, neoplastic
  »bone (periosteum)
»Neoplasm, neoplastic
  »bone (periosteum)
    »limb NEC
»Neoplasm, neoplastic
  »cartilage (articular) (joint) NEC [See Also: Neoplasm, bone]
»Neoplasm, neoplastic
  »joint NEC [See Also: Neoplasm, bone]
»Neoplasm, neoplastic
  »skeleton, skeletal NEC

Information for Patients

Benign Tumors

Also called: Benign neoplasms, Noncancerous tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Tumors are made up of extra cells. Normally, cells grow and divide to form new cells as your body needs them. When cells grow old, they die, and new cells take their place. Sometimes, this process goes wrong. New cells form when your body does not need them, and old cells do not die when they should. These extra cells can divide without stopping and may form tumor.

Treatment often involves surgery. Benign tumors usually don't grow back.

NIH: National Cancer Institute

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Bone Diseases

Your bones help you move, give you shape and support your body. They are living tissues that rebuild constantly throughout your life. During childhood and your teens, your body adds new bone faster than it removes old bone. After about age 20, you can lose bone faster than you make bone. To have strong bones when you are young, and to prevent bone loss when you are older, you need to get enough calcium, vitamin D, and exercise. You should also avoid smoking and drinking too much alcohol.

Bone diseases can make bones easy to break. Different kinds of bone problems include

  • Low bone density and osteoporosis, which make your bones weak and more likely to break
  • Osteogenesis imperfecta makes your bones brittle
  • Paget's disease of bone makes them weak
  • Bones can also develop cancer and infections
  • Other bone diseases, which are caused by poor nutrition, genetics, or problems with the rate of bone growth or rebuilding

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

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Cartilage Disorders

Cartilage is the tough but flexible tissue that covers the ends of your bones at a joint. It also gives shape and support to other parts of your body, such as your ears, nose and windpipe. Healthy cartilage helps you move by allowing your bones to glide over each other. It also protects bones by preventing them from rubbing against each other.

Injured, inflamed, or damaged cartilage can cause symptoms such as pain and limited movement. It can also lead to joint damage and deformity. Causes of cartilage problems include

  • Tears and injuries, such as sports injuries
  • Genetic factors
  • Other disorders, such as some types of arthritis

Osteoarthritis results from breakdown of cartilage.

NIH: National Institute of Arthritis and Musculoskeletal and Skin Diseases

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