M90
Non-Billable

Osteopathies in diseases classified elsewhere

Non-Billable / Non-Specific Code

What is Osteopathies in diseases classified elsewhere?

ICD-10-CM M90 is the diagnosis code for Osteopathies in diseases classified elsewhere. This code falls under the section "Other osteopathies" within Chapter 13 — Diseases of the musculoskeletal system and connective tissue (M00-M99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

⛔ Excludes1

Coding Guidelines for M90

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as M90. They are mutually exclusive:

  • osteochondritis, osteomyelitis, and osteopathy (in):
  • cryptococcosis (B45.3)
  • diabetes mellitus (E08-E13 with .69-)
  • gonococcal (A54.43)
  • neurogenic syphilis (A52.11)
  • renal osteodystrophy (N25.0)
  • salmonellosis (A02.24)
  • secondary syphilis (A51.46)
  • syphilis (late) (A52.77)

ICD-10-CM Code Hierarchy

Understanding where M90 sits in the ICD-10-CM classification helps ensure proper coding:

Current CodeM90 — Osteopathies in diseases classified elsewhere
Sub-Codes (3)
Sub-Codes 3 entries
M90.5Osteonecrosis in diseases classified elsewhereNon-BillableM90.50Osteonecrosis in diseases classified elsewhere, unspecified siteBillableM90.51Osteonecrosis in diseases classified elsewhere, shoulderNon-BillableM90.511Osteonecrosis in diseases classified elsewhere, right shoulderBillableM90.512Osteonecrosis in diseases classified elsewhere, left shoulderBillableM90.519Osteonecrosis in diseases classified elsewhere, unspecified shoulderBillableM90.52Osteonecrosis in diseases classified elsewhere, upper armNon-BillableM90.521Osteonecrosis in diseases classified elsewhere, right upper armBillableM90.522Osteonecrosis in diseases classified elsewhere, left upper armBillableM90.529Osteonecrosis in diseases classified elsewhere, unspecified upper armBillableM90.53Osteonecrosis in diseases classified elsewhere, forearmNon-BillableM90.531Osteonecrosis in diseases classified elsewhere, right forearmBillableM90.532Osteonecrosis in diseases classified elsewhere, left forearmBillableM90.539Osteonecrosis in diseases classified elsewhere, unspecified forearmBillableM90.54Osteonecrosis in diseases classified elsewhere, handNon-BillableM90.541Osteonecrosis in diseases classified elsewhere, right handBillableM90.542Osteonecrosis in diseases classified elsewhere, left handBillableM90.549Osteonecrosis in diseases classified elsewhere, unspecified handBillableM90.55Osteonecrosis in diseases classified elsewhere, thighNon-BillableM90.551Osteonecrosis in diseases classified elsewhere, right thighBillableM90.552Osteonecrosis in diseases classified elsewhere, left thighBillableM90.559Osteonecrosis in diseases classified elsewhere, unspecified thighBillableM90.56Osteonecrosis in diseases classified elsewhere, lower legNon-BillableM90.561Osteonecrosis in diseases classified elsewhere, right lower legBillableM90.562Osteonecrosis in diseases classified elsewhere, left lower legBillableM90.569Osteonecrosis in diseases classified elsewhere, unspecified lower legBillableM90.57Osteonecrosis in diseases classified elsewhere, ankle and footNon-BillableM90.571Osteonecrosis in diseases classified elsewhere, right ankle and footBillableM90.572Osteonecrosis in diseases classified elsewhere, left ankle and footBillableM90.579Osteonecrosis in diseases classified elsewhere, unspecified ankle and footBillableM90.58Osteonecrosis in diseases classified elsewhere, other siteBillableM90.59Osteonecrosis in diseases classified elsewhere, multiple sitesBillableM90.6Osteitis deformans in neoplastic diseasesNon-BillableM90.60Osteitis deformans in neoplastic diseases, unspecified siteBillableM90.61Osteitis deformans in neoplastic diseases, shoulderNon-BillableM90.611Osteitis deformans in neoplastic diseases, right shoulderBillableM90.612Osteitis deformans in neoplastic diseases, left shoulderBillableM90.619Osteitis deformans in neoplastic diseases, unspecified shoulderBillableM90.62Osteitis deformans in neoplastic diseases, upper armNon-BillableM90.621Osteitis deformans in neoplastic diseases, right upper armBillableM90.622Osteitis deformans in neoplastic diseases, left upper armBillableM90.629Osteitis deformans in neoplastic diseases, unspecified upper armBillableM90.63Osteitis deformans in neoplastic diseases, forearmNon-BillableM90.631Osteitis deformans in neoplastic diseases, right forearmBillableM90.632Osteitis deformans in neoplastic diseases, left forearmBillableM90.639Osteitis deformans in neoplastic diseases, unspecified forearmBillableM90.64Osteitis deformans in neoplastic diseases, handNon-BillableM90.641Osteitis deformans in neoplastic diseases, right handBillableM90.642Osteitis deformans in neoplastic diseases, left handBillableM90.649Osteitis deformans in neoplastic diseases, unspecified handBillableM90.65Osteitis deformans in neoplastic diseases, thighNon-BillableM90.651Osteitis deformans in neoplastic diseases, right thighBillableM90.652Osteitis deformans in neoplastic diseases, left thighBillableM90.659Osteitis deformans in neoplastic diseases, unspecified thighBillableM90.66Osteitis deformans in neoplastic diseases, lower legNon-BillableM90.661Osteitis deformans in neoplastic diseases, right lower legBillableM90.662Osteitis deformans in neoplastic diseases, left lower legBillableM90.669Osteitis deformans in neoplastic diseases, unspecified lower legBillableM90.67Osteitis deformans in neoplastic diseases, ankle and footNon-BillableM90.671Osteitis deformans in neoplastic diseases, right ankle and footBillableM90.672Osteitis deformans in neoplastic diseases, left ankle and footBillableM90.679Osteitis deformans in neoplastic diseases, unspecified ankle and footBillableM90.68Osteitis deformans in neoplastic diseases, other siteBillableM90.69Osteitis deformans in neoplastic diseases, multiple sitesBillableM90.8Osteopathy in diseases classified elsewhereNon-BillableM90.80Osteopathy in diseases classified elsewhere, unspecified siteBillableM90.81Osteopathy in diseases classified elsewhere, shoulderNon-BillableM90.811Osteopathy in diseases classified elsewhere, right shoulderBillableM90.812Osteopathy in diseases classified elsewhere, left shoulderBillableM90.819Osteopathy in diseases classified elsewhere, unspecified shoulderBillableM90.82Osteopathy in diseases classified elsewhere, upper armNon-BillableM90.821Osteopathy in diseases classified elsewhere, right upper armBillableM90.822Osteopathy in diseases classified elsewhere, left upper armBillableM90.829Osteopathy in diseases classified elsewhere, unspecified upper armBillableM90.83Osteopathy in diseases classified elsewhere, forearmNon-BillableM90.831Osteopathy in diseases classified elsewhere, right forearmBillableM90.832Osteopathy in diseases classified elsewhere, left forearmBillableM90.839Osteopathy in diseases classified elsewhere, unspecified forearmBillableM90.84Osteopathy in diseases classified elsewhere, handNon-BillableM90.841Osteopathy in diseases classified elsewhere, right handBillableM90.842Osteopathy in diseases classified elsewhere, left handBillableM90.849Osteopathy in diseases classified elsewhere, unspecified handBillableM90.85Osteopathy in diseases classified elsewhere, thighNon-BillableM90.851Osteopathy in diseases classified elsewhere, right thighBillableM90.852Osteopathy in diseases classified elsewhere, left thighBillableM90.859Osteopathy in diseases classified elsewhere, unspecified thighBillableM90.86Osteopathy in diseases classified elsewhere, lower legNon-BillableM90.861Osteopathy in diseases classified elsewhere, right lower legBillableM90.862Osteopathy in diseases classified elsewhere, left lower legBillableM90.869Osteopathy in diseases classified elsewhere, unspecified lower legBillableM90.87Osteopathy in diseases classified elsewhere, ankle and footNon-BillableM90.871Osteopathy in diseases classified elsewhere, right ankle and footBillableM90.872Osteopathy in diseases classified elsewhere, left ankle and footBillableM90.879Osteopathy in diseases classified elsewhere, unspecified ankle and footBillableM90.88Osteopathy in diseases classified elsewhere, other siteBillableM90.89Osteopathy in diseases classified elsewhere, multiple sitesBillable
Related Codes

Frequently Asked Questions

Is M90 a billable ICD-10-CM code?

No, M90 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does M90 mean?

M90 is the ICD-10-CM diagnosis code for "Osteopathies in diseases classified elsewhere". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is M90 in?

M90 is located in Section M86-M90 — "Other osteopathies" within Chapter 13 of the ICD-10-CM Tabular List.

What are the sub-codes of M90?

M90 has 3 sub-code(s) that provide more specific detail: M90.5, M90.6, M90.8.

When should I use M90?

Use M90 when the patients documented diagnosis matches "Osteopathies in diseases classified elsewhere" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Osteopathies in diseases classified elsewhere?

The ICD-10-CM code for Osteopathies in diseases classified elsewhere is M90.

Can M90 be used for primary diagnosis?

No, M90 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is M90 in?

M90 is in Chapter 13 of the ICD-10-CM Tabular List.

What conditions are excluded from M90?

Type 1 Excludes for M90 include: osteochondritis, osteomyelitis, and osteopathy (in):; cryptococcosis (B45.3); diabetes mellitus (E08-E13 with .69-) and more.

Is M90 valid for 2026?

Yes, M90 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousM89.9Disorder of bone, unspecifiedNext →M90.5Osteonecrosis in diseases classified elsewhere
Code Details
M90
Osteopathies in diseases classified elsewhere
Non-Billable / Non-Specific Code
13 — Diseases of the musculoskeletal system and connective tissue (M00-M99)
M86-M90 — Other osteopathies
2026 ICD-10-CM