AutoICD API

M87.9

Billable

Osteonecrosis, unspecified

Osteonecrosis, unspecified

Status

Billable / Specific

Block

M86-M90

Parent Code

M87

ICD-11 Mapping

1 equivalent

Coding Notes

Inclusion Terms

Alternative clinical terms for this condition

  • Necrosis of bone NOS

Includes

Conditions included under this code

  • avascular necrosis of bone

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

Excludes 2

Conditions not included here, but the patient may have both

Use Additional Code

Additional codes that should follow this code

Related Codes(5)
M87.0

Idiopathic aseptic necrosis of bone

M87.1

Osteonecrosis due to drugs

M87.2

Osteonecrosis due to previous trauma

M87.3

Other secondary osteonecrosis

M87.8

Other osteonecrosis

ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

FB81.ZOsteonecrosis, unspecifiedequivalentPrimary
Also Known As / Clinical Terms(207)

SNOMED CT

UMLS

Clinical Terms

  • Bone necrosis
  • Aseptic necrosis of bone of right ankle region
  • Avascular necrosis of bilateral humeri
  • Avascular necrosis of bone of left foot
  • Osteonecrosis of right lateral femoral condyle
  • Avascular necrosis of metatarsal bone of left foot
  • Osteonecrosis of right humerus
  • Avascular necrosis of capitellum
  • Avascular necrosis of bone of right ankle region
  • Osteonecrosis of carpal bone of left wrist
  • Avascular necrosis of left lateral femoral condyle
  • Aseptic necrosis of carpal bone of left wrist
  • Avascular necrosis of carpal bone of left wrist
  • Avascular necrosis of both humeri
  • Aseptic necrosis of metatarsal of left foot
  • Avascular necrosis of bone of left elbow region
  • Avascular necrosis of left humerus
  • Aseptic necrosis of bilateral humeri
  • Aseptic necrosis of left humerus
  • Avascular necrosis of right lateral femoral condyle
  • Bone Necroses
  • Aseptic necrosis of bone of jaw
  • Avascular necrosis of bone of left ankle region
  • Osteonecrosis of bone of both elbow regions
  • Osteonecrosis of bone of right foot
  • Avascular necrosis of left talus
  • Osteonecrosis of bone of left ankle region
  • Osteonecrosis of bone of right elbow region
  • Osteonecrosis of bone of left elbow region
  • Necrosis of bone NOS
  • Avascular necrosis of talus
  • Osteonecrosis of bone of left foot
  • Osteonecrosis of femoral condyle
  • Avascular necrosis of bone of both elbow regions
  • Aseptic necrosis of right humerus
  • Osteonecrosis of jaw
  • Acute osteonecrosis
  • Aseptic necrosis of bone of elbow region
  • Aseptic necrosis of left lateral femoral condyle
  • Osteonecrosis of metatarsal of right foot
  • Necrosis bone
  • Osteochondronecrosis
  • Aseptic necrosis of bone of left elbow region
  • Osteonecrosis of left talus
  • Aseptic necrosis of femoral condyle
  • Aseptic necrosis of right lateral femoral condyle
  • Avascular necrosis of bone of jaw
  • Acute aseptic necrosis of bone
  • Aseptic necrosis of lateral femoral condyle
  • Aseptic necrosis of lunate
  • Osteonecrosis of bone of elbow region
  • Avascular necrosis of bone of right foot
  • Osteonecrosis of carpal bone of right wrist
  • Avascular necrosis of right humerus
  • Avascular necrosis of lunate
  • Osteonecroses
  • Avascular necrosis of metatarsal bone
  • Avascular necrosis of lateral femoral condyle
  • necrosis of bone
  • Avascular necrosis of metatarsal bone of right foot
  • Osteonecrosis of metatarsal of left foot
  • Aseptic necrosis of bone of bilateral elbow regions
  • Aseptic necrosis of humerus
  • Aseptic necrosis of bone of right elbow region
  • Aseptic necrosis of left lunate
  • Osteonecrosis of right talus
  • Osteonecrosis of talus
  • Avascular necrosis of humerus
  • Acute avascular necrosis of bone
  • Avascular necrosis of femoral condyle
  • Osteonecrosis of humerus
  • Osteonecrosis of bone of bilateral elbow regions
  • Aseptic necrosis of left talus
  • Aseptic necrosis of bone of left foot
  • Avascular necrosis of bone of right elbow region
  • Aseptic necrosis of right talus
  • Aseptic necrosis of metatarsal of right foot
  • Bilateral osteonecrosis of humeri
  • Aseptic necrosis of bone of left ankle region
  • Aseptic necrosis of bone of both elbow regions
  • Aseptic necrosis of bone of right foot
  • Aseptic necrosis of talus
  • Avascular necrosis of carpal bone of right wrist
  • Avascular necrosis of left lunate bone
  • Necroses, Bone
  • Osteonecrosis of lateral femoral condyle
  • Aseptic necrosis of carpal bone of right wrist
  • Osteonecrosis of lunate
  • Avascular necrosis of tarsus
  • Necrosis, Bone
  • Osteonecrosis of bone of right ankle region
  • Avascular necrosis of right talus bone
  • Aseptic necrosis of right lunate
  • Osteonecrosis of left humerus
  • Osteonecrosis of right lunate
  • Avascular necrosis of bone of elbow region
  • Osteonecrosis of left lunate
  • Avascular necrosis of lunate bone
  • Avascular necrosis of bone of bilateral elbow regions
  • Osteonecrosis of left lateral femoral condyle
  • Avascular necrosis of right lunate bone
Frequently Asked Questions
What is the ICD-10 code for osteonecrosis, unspecified?

The ICD-10-CM code for osteonecrosis, unspecified is M87.9. The full clinical description is "Osteonecrosis, unspecified". M87.9 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code M87.9 mean?

ICD-10-CM code M87.9 represents “Osteonecrosis, unspecified”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a billable/specific code that can be used on a claim.

Is M87.9 a billable code?

Yes, M87.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is M87.9 in?

M87.9 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).

What codes cannot be used with M87.9?

M87.9 has Excludes1 notes indicating codes that cannot be used together with it, including: postprocedural osteopathies (M96.-); juvenile osteonecrosis (M91-M92); osteochondropathies (M90-M93).

Are additional codes required with M87.9?

Yes, when using M87.9, also report: major osseous defect, if applicable (M89.7-).

What SNOMED CT codes does M87.9 map to?

M87.9 maps to 31 SNOMED CT concepts: 84775005, 16032631000119102, 16032431000119100, 1335747008, 1231151009, and 26 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for M87.9?

M87.9 is linked to 1 UMLS Concept Unique Identifier: C0029445. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does M87.9 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like osteonecrosis, unspecified affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of M87.9?

M87.9 maps to the ICD-11 code: FB81.Z (Osteonecrosis, unspecified).

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Try FreeView API Docs

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.