ICD-10 · PDGM grouping
M90 Osteopathies in diseases classified elsewhere
All 72 codes in the M90 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
72
Can lead a claim
0
Cannot lead a claim
72
What CMS assigns to M90
None of the 72 codes is assigned a clinical group. None of the 72 is assigned a comorbidity subgroup. None can lead a claim. CMS attaches a code-first note to all 72.
Code first
CMS grouper convention 130, on M90.50, M90.511, M90.512, M90.519, M90.521, M90.522, M90.529, M90.531, M90.532, M90.539, M90.541, M90.542, M90.549, M90.551, M90.552, M90.559, M90.561, M90.562, M90.569, M90.571, M90.572, M90.579, M90.58, M90.59. Code first:
- caisson disease (T70.3)
- hemoglobinopathy (D50-D64)
- underlying disease, such as:
CMS grouper convention 131, on M90.60, M90.611, M90.612, M90.619, M90.621, M90.622, M90.629, M90.631, M90.632, M90.639, M90.641, M90.642, M90.649, M90.651, M90.652, M90.659, M90.661, M90.662, M90.669, M90.671, M90.672, M90.679, M90.68, M90.69. Code first:
- the neoplasm (C40.-, C41.-)
CMS grouper convention 132, on M90.80, M90.811, M90.812, M90.819, M90.821, M90.822, M90.829, M90.831, M90.832, M90.839, M90.841, M90.842, M90.849, M90.851, M90.852, M90.859, M90.861, M90.862, M90.869, M90.871, M90.872, M90.879, M90.88, M90.89. Code first:
- rickets (E55.0)
- underlying disease, such as:
- vitamin-D-resistant rickets (E83.31)
Every code in M90
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| M90.5 Osteonecrosis in diseases classified elsewhere | ||||
| M90.50 | Osteonecrosis in diseases classified elsewhere, unspecified siteCMS: Osteonecrosis in diseases classified elsewhere, unsp site | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.51 Osteonecrosis in diseases classified elsewhere, shoulder | ||||
| M90.511 | Osteonecrosis in diseases classified elsewhere, right shoulderCMS: Osteonecrosis in diseases classd elswhr, right shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.512 | Osteonecrosis in diseases classified elsewhere, left shoulderCMS: Osteonecrosis in diseases classd elswhr, left shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.519 | Osteonecrosis in diseases classified elsewhere, unspecified shoulderCMS: Osteonecrosis in diseases classd elswhr, unsp shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.52 Osteonecrosis in diseases classified elsewhere, upper arm | ||||
| M90.521 | Osteonecrosis in diseases classified elsewhere, right upper armCMS: Osteonecrosis in diseases classd elswhr, right upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.522 | Osteonecrosis in diseases classified elsewhere, left upper armCMS: Osteonecrosis in diseases classd elswhr, left upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.529 | Osteonecrosis in diseases classified elsewhere, unspecified upper armCMS: Osteonecrosis in diseases classd elswhr, unsp upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.53 Osteonecrosis in diseases classified elsewhere, forearm | ||||
| M90.531 | Osteonecrosis in diseases classified elsewhere, right forearmCMS: Osteonecrosis in diseases classd elswhr, right forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.532 | Osteonecrosis in diseases classified elsewhere, left forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.539 | Osteonecrosis in diseases classified elsewhere, unspecified forearmCMS: Osteonecrosis in diseases classified elsewhere, unsp forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.54 Osteonecrosis in diseases classified elsewhere, hand | ||||
| M90.541 | Osteonecrosis in diseases classified elsewhere, right hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.542 | Osteonecrosis in diseases classified elsewhere, left hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.549 | Osteonecrosis in diseases classified elsewhere, unspecified handCMS: Osteonecrosis in diseases classified elsewhere, unsp hand | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.55 Osteonecrosis in diseases classified elsewhere, thigh | ||||
| M90.551 | Osteonecrosis in diseases classified elsewhere, right thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.552 | Osteonecrosis in diseases classified elsewhere, left thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.559 | Osteonecrosis in diseases classified elsewhere, unspecified thighCMS: Osteonecrosis in diseases classified elsewhere, unsp thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.56 Osteonecrosis in diseases classified elsewhere, lower leg | ||||
| M90.561 | Osteonecrosis in diseases classified elsewhere, right lower legCMS: Osteonecrosis in diseases classd elswhr, right lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.562 | Osteonecrosis in diseases classified elsewhere, left lower legCMS: Osteonecrosis in diseases classd elswhr, left lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.569 | Osteonecrosis in diseases classified elsewhere, unspecified lower legCMS: Osteonecrosis in diseases classd elswhr, unsp lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.57 Osteonecrosis in diseases classified elsewhere, ankle and foot | ||||
| M90.571 | Osteonecrosis in diseases classified elsewhere, right ankle and footCMS: Osteonecrosis in diseases classd elswhr, right ank/ft | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.572 | Osteonecrosis in diseases classified elsewhere, left ankle and footCMS: Osteonecrosis in diseases classd elswhr, left ankle and foot | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.579 | Osteonecrosis in diseases classified elsewhere, unspecified ankle and footCMS: Osteonecrosis in diseases classd elswhr, unsp ankle and foot | Cannot lead a claimManifestation code is not reportable as principal diagnosisUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| M90.58 | Osteonecrosis in diseases classified elsewhere, other site | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.59 | Osteonecrosis in diseases classified elsewhere, multiple sitesCMS: Osteonecrosis in diseases classd elswhr, multiple sites | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.6 Osteitis deformans in neoplastic diseases | ||||
| M90.60 | Osteitis deformans in neoplastic diseases, unspecified site | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.61 Osteitis deformans in neoplastic diseases, shoulder | ||||
| M90.611 | Osteitis deformans in neoplastic diseases, right shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.612 | Osteitis deformans in neoplastic diseases, left shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.619 | Osteitis deformans in neoplastic diseases, unspecified shoulderCMS: Osteitis deformans in neoplastic diseases, unsp shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.62 Osteitis deformans in neoplastic diseases, upper arm | ||||
| M90.621 | Osteitis deformans in neoplastic diseases, right upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.622 | Osteitis deformans in neoplastic diseases, left upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.629 | Osteitis deformans in neoplastic diseases, unspecified upper armCMS: Osteitis deformans in neoplastic diseases, unsp upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.63 Osteitis deformans in neoplastic diseases, forearm | ||||
| M90.631 | Osteitis deformans in neoplastic diseases, right forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.632 | Osteitis deformans in neoplastic diseases, left forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.639 | Osteitis deformans in neoplastic diseases, unspecified forearmCMS: Osteitis deformans in neoplastic diseases, unsp forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.64 Osteitis deformans in neoplastic diseases, hand | ||||
| M90.641 | Osteitis deformans in neoplastic diseases, right hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.642 | Osteitis deformans in neoplastic diseases, left hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.649 | Osteitis deformans in neoplastic diseases, unspecified hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.65 Osteitis deformans in neoplastic diseases, thigh | ||||
| M90.651 | Osteitis deformans in neoplastic diseases, right thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.652 | Osteitis deformans in neoplastic diseases, left thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.659 | Osteitis deformans in neoplastic diseases, unspecified thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.66 Osteitis deformans in neoplastic diseases, lower leg | ||||
| M90.661 | Osteitis deformans in neoplastic diseases, right lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.662 | Osteitis deformans in neoplastic diseases, left lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.669 | Osteitis deformans in neoplastic diseases, unspecified lower legCMS: Osteitis deformans in neoplastic diseases, unsp lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.67 Osteitis deformans in neoplastic diseases, ankle and foot | ||||
| M90.671 | Osteitis deformans in neoplastic diseases, right ankle and footCMS: Osteitis deformans in neoplastic diseases, right ank/ft | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.672 | Osteitis deformans in neoplastic diseases, left ankle and footCMS: Osteitis deformans in neoplastic diseases, left ank/ft | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.679 | Osteitis deformans in neoplastic diseases, unspecified ankle and footCMS: Osteitis deformans in neoplastic diseases, unsp ank/ft | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.68 | Osteitis deformans in neoplastic diseases, other site | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.69 | Osteitis deformans in neoplastic diseases, multiple sites | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.8 Osteopathy in diseases classified elsewhere | ||||
| M90.80 | Osteopathy in diseases classified elsewhere, unspecified siteCMS: Osteopathy in diseases classified elsewhere, unsp site | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.81 Osteopathy in diseases classified elsewhere, shoulder | ||||
| M90.811 | Osteopathy in diseases classified elsewhere, right shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.812 | Osteopathy in diseases classified elsewhere, left shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.819 | Osteopathy in diseases classified elsewhere, unspecified shoulderCMS: Osteopathy in diseases classified elsewhere, unsp shoulder | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.82 Osteopathy in diseases classified elsewhere, upper arm | ||||
| M90.821 | Osteopathy in diseases classified elsewhere, right upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.822 | Osteopathy in diseases classified elsewhere, left upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.829 | Osteopathy in diseases classified elsewhere, unspecified upper armCMS: Osteopathy in diseases classified elsewhere, unsp upper arm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.83 Osteopathy in diseases classified elsewhere, forearm | ||||
| M90.831 | Osteopathy in diseases classified elsewhere, right forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.832 | Osteopathy in diseases classified elsewhere, left forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.839 | Osteopathy in diseases classified elsewhere, unspecified forearmCMS: Osteopathy in diseases classified elsewhere, unsp forearm | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.84 Osteopathy in diseases classified elsewhere, hand | ||||
| M90.841 | Osteopathy in diseases classified elsewhere, right hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.842 | Osteopathy in diseases classified elsewhere, left hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.849 | Osteopathy in diseases classified elsewhere, unspecified handCMS: Osteopathy in diseases classified elsewhere, unsp hand | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.85 Osteopathy in diseases classified elsewhere, thigh | ||||
| M90.851 | Osteopathy in diseases classified elsewhere, right thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.852 | Osteopathy in diseases classified elsewhere, left thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.859 | Osteopathy in diseases classified elsewhere, unspecified thighCMS: Osteopathy in diseases classified elsewhere, unsp thigh | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.86 Osteopathy in diseases classified elsewhere, lower leg | ||||
| M90.861 | Osteopathy in diseases classified elsewhere, right lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.862 | Osteopathy in diseases classified elsewhere, left lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.869 | Osteopathy in diseases classified elsewhere, unspecified lower legCMS: Osteopathy in diseases classified elsewhere, unsp lower leg | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.87 Osteopathy in diseases classified elsewhere, ankle and foot | ||||
| M90.871 | Osteopathy in diseases classified elsewhere, right ankle and footCMS: Osteopathy in diseases classd elswhr, right ankle and foot | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.872 | Osteopathy in diseases classified elsewhere, left ankle and footCMS: Osteopathy in diseases classd elswhr, left ankle and foot | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.879 | Osteopathy in diseases classified elsewhere, unspecified ankle and footCMS: Osteopathy in diseases classd elswhr, unsp ankle and foot | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.88 | Osteopathy in diseases classified elsewhere, other site | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
| M90.89 | Osteopathy in diseases classified elsewhere, multiple sites | Cannot lead a claimManifestation code is not reportable as principal diagnosis | None | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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