ICD-10 Code for Osteonecrosis

The default ICD-10-CM 2027 code for osteonecrosis is M87.9 – Osteonecrosis, unspecified. More specific codes depend on the details documented, as listed in the official index (72 codes, 29 billable).

Main code: M87.9 – Osteonecrosis, unspecified
Billable: Yes

Index entries for Osteonecrosis

due to
- drugs – see Osteonecrosis, secondary, due to, drugs
- trauma – see Osteonecrosis, secondary, due to, trauma
idiopathic aseptic – M87.00
- ankle – M87.07- (header)
- carpus – M87.03- (header)
- clavicle – M87.01- (header)
- femur – M87.05- (header)
- fibula – M87.06- (header)
- finger – M87.04- (header)
- humerus – M87.02- (header)
- ilium – M87.050
- ischium – M87.050
- metacarpus – M87.04- (header)
- metatarsus – M87.07- (header)
- multiple sites – M87.09
- neck – M87.08
- pelvis – M87.050
- pubic ramus [pubis] – M87.050
- radius – M87.03- (header)
- rib – M87.08
- scapula – M87.01- (header)
- skull – M87.08
- tarsus – M87.07- (header)
- tibia – M87.06- (header)
- toe – M87.07- (header)
- ulna – M87.03- (header)
- vertebra – M87.08
secondary NEC – M87.30
- carpus – M87.33- (header)
- clavicle – M87.31- (header)
- due to
  - drugs – M87.10
    - carpus – M87.13- (header)
    - clavicle – M87.11- (header)
    - femur – M87.15- (header)
    - fibula – M87.16- (header)
    - finger – M87.14- (header)
    - humerus – M87.12- (header)
    - ilium – M87.150
    - ischium – M87.150
    - jaw – M87.180
    - metacarpus – M87.14- (header)
    - metatarsus – M87.17- (header)
    - multiple sites – M87.19
    - neck – M87.188
    - pubic ramus [pubis] – M87.150
    - radius – M87.13- (header)
    - rib – M87.188
    - scapula – M87.11- (header)
    - skull – M87.188
    - tarsus – M87.17- (header)
    - tibia – M87.16- (header)
    - toe – M87.17- (header)
    - ulna – M87.13- (header)
    - vertebra – M87.188
  - hemoglobinopathy NEC – D58.2 – M90.50 [manifestation]
    - carpus – D58.2 – M90.54- (header) [manifestation]
    - clavicle – D58.2 – M90.51- (header) [manifestation]
    - femur – D58.2 – M90.55- (header) [manifestation]
    - fibula – D58.2 – M90.56- (header) [manifestation]
    - finger – D58.2 – M90.54- (header) [manifestation]
    - humerus – D58.2 – M90.52- (header) [manifestation]
    - ilium – D58.2 – M90.58 [manifestation]
    - ischium – D58.2 – M90.58 [manifestation]
    - metacarpus – D58.2 – M90.54- (header) [manifestation]
    - metatarsus – D58.2 – M90.57- (header) [manifestation]
    - multiple sites – D58.2 – M90.59 [manifestation]
    - neck – D58.2 – M90.58 [manifestation]
    - pubic ramus – pubis] D58.2 [M90.58 [manifestation]
    - radius – D58.2 – M90.53- (header) [manifestation]
    - rib – D58.2 – M90.58 [manifestation]
    - scapula – D58.2 – M90.51- (header) [manifestation]
    - skull – D58.2 – M90.58 [manifestation]
    - specified NEC – D58.2 – M90.58 [manifestation]
    - tarsus – D58.2 – M90.57- (header) [manifestation]
    - tibia – D58.2 – M90.56- (header) [manifestation]
    - toe – D58.2 – M90.57- (header) [manifestation]
    - ulna – D58.2 – M90.53- (header) [manifestation]
    - vertebra – D58.2 – M90.58 [manifestation]
  - trauma (previous) – M87.20
    - carpus – M87.23- (header)
    - clavicle – M87.21- (header)
    - femur – M87.25- (header)
    - fibula – M87.26- (header)
    - finger – M87.24- (header)
    - humerus – M87.22- (header)
    - ilium – M87.250
    - ischium – M87.250
    - metacarpus – M87.24- (header)
    - metatarsus – M87.27- (header)
    - multiple sites – M87.29
    - neck – M87.28
    - pubic ramus [pubis] – M87.250
    - radius – M87.23- (header)
    - rib – M87.28
    - scapula – M87.21- (header)
    - skull – M87.28
    - tarsus – M87.27- (header)
    - tibia – M87.26- (header)
    - toe – M87.27- (header)
    - ulna – M87.23- (header)
    - vertebra – M87.28
- femur – M87.35- (header)
- fibula – M87.36- (header)
- finger – M87.34- (header)
- humerus – M87.32- (header)
- ilium – M87.350
- in
  - caisson disease – T70.3 (header) – M90.50 [manifestation]
    - carpus – T70.3 (header) – M90.54- (header) [manifestation]
    - clavicle – T70.3 (header) – M90.51- (header) [manifestation]
    - femur – T70.3 (header) – M90.55- (header) [manifestation]
    - fibula – T70.3 (header) – M90.56- (header) [manifestation]
    - finger – T70.3 (header) – M90.54- (header) [manifestation]
    - humerus – T70.3 (header) – M90.52- (header) [manifestation]
    - ilium – T70.3 (header) – M90.58 [manifestation]
    - ischium – T70.3 (header) – M90.58 [manifestation]
    - metacarpus – T70.3 (header) – M90.54- (header) [manifestation]
    - metatarsus – T70.3 (header) – M90.57- (header) [manifestation]
    - multiple sites – T70.3 (header) – M90.59 [manifestation]
    - neck – T70.3 (header) – M90.58 [manifestation]
    - pubic ramus – pubis] T70.3 [M90.58 [manifestation]
    - radius – T70.3 (header) – M90.53- (header) [manifestation]
    - rib – T70.3 (header) – M90.58 [manifestation]
    - scapula – T70.3 (header) – M90.51- (header) [manifestation]
    - skull – T70.3 (header) – M90.58 [manifestation]
    - tarsus – T70.3 (header) – M90.57- (header) [manifestation]
    - tibia – T70.3 (header) – M90.56- (header) [manifestation]
    - toe – T70.3 (header) – M90.57- (header) [manifestation]
    - ulna – T70.3 (header) – M90.53- (header) [manifestation]
    - vertebra – T70.3 (header) – M90.58 [manifestation]
- ischium – M87.350
- metacarpus – M87.34- (header)
- metatarsus – M87.37- (header)
- multiple site – M87.39
- neck – M87.38
- pubic ramus [pubis] – M87.350
- radius – M87.33- (header)
- rib – M87.38
- scapula – M87.319
- skull – M87.38
- tarsus – M87.379
- tibia – M87.366
- toe – M87.379
- ulna – M87.33- (header)
- vertebra – M87.38
specified type NEC – M87.80
- carpus – M87.83- (header)
- clavicle – M87.81- (header)
- femur – M87.85- (header)
- fibula – M87.86- (header)
- finger – M87.84- (header)
- humerus – M87.82- (header)
- ilium – M87.850
- ischium – M87.850
- metacarpus – M87.84- (header)
- metatarsus – M87.87- (header)
- multiple sites – M87.89
- neck – M87.88
- pubic ramus [pubis] – M87.850
- radius – M87.83- (header)
- rib – M87.88
- scapula – M87.81- (header)
- skull – M87.88
- tarsus – M87.87- (header)
- tibia – M87.86- (header)
- toe – M87.87- (header)
- ulna – M87.83- (header)
- vertebra – M87.88

How to choose the right code

Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.

Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.