ICD-10-CM Alphabetic Index · FY 2027 171 Entries

Osteonecrosis in the ICD-10-CM Index ICD-10-CM

The main term Osteonecrosis carries 171 index entries pointing to 62 ICD-10-CM codes. The default entry is M87.9, the code the bare main term maps to; every indented line below refines the term by site, cause, or type. Verify any candidate code in the Tabular List before using it.

✓ Built from the official CMS FY 2027 index fileEffective Oct 1, 2026 – Sep 30, 2027
171
Index Entries
62
Codes Referenced
M87.9
Default Code
O
Letter
171 of 171 shown
ICD-10-CM

Index Entries Under Osteonecrosis 171 entries · 62 codes

Osteonecrosis M87.9
due to
drugs see Osteonecrosis, secondary, due to, drugs
trauma see Osteonecrosis, secondary, due to, trauma
idiopathic aseptic M87.00
ankle M87.07 Non-billable
carpus M87.03 Non-billable
clavicle M87.01 Non-billable
femur M87.05 Non-billable
fibula M87.06 Non-billable
finger M87.04 Non-billable
humerus M87.02 Non-billable
ilium M87.050
ischium M87.050
metacarpus M87.04 Non-billable
metatarsus M87.07 Non-billable
multiple sites M87.09
neck M87.08
pelvis M87.050
pubic ramus [pubis] M87.050
radius M87.03 Non-billable
rib M87.08
scapula M87.01 Non-billable
skull M87.08
tarsus M87.07 Non-billable
tibia M87.06 Non-billable
toe M87.07 Non-billable
ulna M87.03 Non-billable
vertebra M87.08
secondary NEC M87.30
carpus M87.33 Non-billable
clavicle M87.31 Non-billable
due to
drugs M87.10
carpus M87.13 Non-billable
clavicle M87.11 Non-billable
femur M87.15 Non-billable
fibula M87.16 Non-billable
finger M87.14 Non-billable
humerus M87.12 Non-billable
ilium M87.150
ischium M87.150
jaw M87.180
metacarpus M87.14 Non-billable
metatarsus M87.17 Non-billable
multiple sites M87.19
neck M87.188
pubic ramus [pubis] M87.150
radius M87.13 Non-billable
rib M87.188
scapula M87.11 Non-billable
skull M87.188
tarsus M87.17 Non-billable
tibia M87.16 Non-billable
toe M87.17 Non-billable
ulna M87.13 Non-billable
vertebra M87.188
hemoglobinopathy NEC D58.2 [M90.50]
clavicle D58.2 [M90.51]
humerus D58.2 [M90.52]
ischium D58.2 [M90.58]
metacarpus D58.2 [M90.54]
metatarsus D58.2 [M90.57]
multiple sites D58.2 [M90.59]
pubic ramus D58.2 [M90.58]
scapula D58.2 [M90.51]
specified NEC D58.2 [M90.58]
vertebra D58.2 [M90.58]
trauma (previous) M87.20
carpus M87.23 Non-billable
clavicle M87.21 Non-billable
femur M87.25 Non-billable
fibula M87.26 Non-billable
finger M87.24 Non-billable
humerus M87.22 Non-billable
ilium M87.250
ischium M87.250
metacarpus M87.24 Non-billable
metatarsus M87.27 Non-billable
multiple sites M87.29
neck M87.28
pubic ramus [pubis] M87.250
radius M87.23 Non-billable
rib M87.28
scapula M87.21 Non-billable
skull M87.28
tarsus M87.27 Non-billable
tibia M87.26 Non-billable
toe M87.27 Non-billable
ulna M87.23 Non-billable
vertebra M87.28
femur M87.35 Non-billable
fibula M87.36 Non-billable
finger M87.34 Non-billable
humerus M87.32 Non-billable
ilium M87.350
in
caisson disease T70.3 Non-billable [M90.50]
carpus T70.3 Non-billable [M90.54]
clavicle T70.3 Non-billable [M90.51]
femur T70.3 Non-billable [M90.55]
fibula T70.3 Non-billable [M90.56]
finger T70.3 Non-billable [M90.54]
humerus T70.3 Non-billable [M90.52]
ilium T70.3 Non-billable [M90.58]
ischium T70.3 Non-billable [M90.58]
metacarpus T70.3 Non-billable [M90.54]
metatarsus T70.3 Non-billable [M90.57]
multiple sites T70.3 Non-billable [M90.59]
neck T70.3 Non-billable [M90.58]
pubic ramus T70.3 Non-billable [M90.58]
radius T70.3 Non-billable [M90.53]
rib T70.3 Non-billable [M90.58]
scapula T70.3 Non-billable [M90.51]
skull T70.3 Non-billable [M90.58]
tarsus T70.3 Non-billable [M90.57]
tibia T70.3 Non-billable [M90.56]
toe T70.3 Non-billable [M90.57]
ulna T70.3 Non-billable [M90.53]
vertebra T70.3 Non-billable [M90.58]
ischium M87.350
metacarpus M87.34 Non-billable
metatarsus M87.37 Non-billable
multiple site M87.39
neck M87.38
pubic ramus [pubis] M87.350
radius M87.33 Non-billable
rib M87.38
scapula M87.319
skull M87.38
tarsus M87.379
tibia M87.366
toe M87.379
ulna M87.33 Non-billable
vertebra M87.38
specified type NEC M87.80
carpus M87.83 Non-billable
clavicle M87.81 Non-billable
femur M87.85 Non-billable
fibula M87.86 Non-billable
finger M87.84 Non-billable
humerus M87.82 Non-billable
ilium M87.850
ischium M87.850
metacarpus M87.84 Non-billable
metatarsus M87.87 Non-billable
multiple sites M87.89
neck M87.88
pubic ramus [pubis] M87.850
radius M87.83 Non-billable
rib M87.88
scapula M87.81 Non-billable
skull M87.88
tarsus M87.87 Non-billable
tibia M87.86 Non-billable
toe M87.87 Non-billable
ulna M87.83 Non-billable
vertebra M87.88

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Related Index Terms

All index terms starting with OIndex to Diseases and InjuriesICD-10-CM Code Lookup

Source: Centers for Medicare & Medicaid Services, FY 2027 ICD-10-CM Index to Diseases and Injuries release files, effective October 1, 2026 through September 30, 2027.