2027 ICD-10-CM Diagnosis Code M70.22Olecranon bursitis, left elbow

ICD-10-CM Codes›M00–M99›M70-M79›M70

ICD-10-CM M70.22
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M70.22 is a billable ICD-10-CM diagnosis code for olecranon bursitis, left elbow. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 557 through 558. Coders also document this condition as bilateral olecranon bursitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified connective tissue disease.

Code Identity

ICD-10-CM Code
M70.22
Billable Status
Yes — Valid for Submission
Code Describes
Olecranon bursitis, left elbow
Short Description
Olecranon bursitis, left elbow
Same as the full description in the CMS dataset.
Parent Code
Olecranon bursitis

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM70-M79Other soft tissue disorders
CategoryM70Soft tissue disorders related to use, overuse and pressure
This CodeM70.22Olecranon bursitis, left elbow

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bilateral olecranon bursitis
  • Bursitis of left elbow
  • Bursitis of olecranon of left elbow
  • Bursitis of olecranon of right elbow
  • Bursitis of right elbow
  • Gouty bursitis of left olecranon
  • Gouty bursitis of olecranon

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M70.22: its own notes plus those printed at M70 and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From M70 Soft tissue disorders related to use, overuse and pressure applies to 75 codes
  • soft tissue disorders of occupational origin

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From M70 Soft tissue disorders related to use, overuse and pressure applies to 75 codes

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From M70 Soft tissue disorders related to use, overuse and pressure applies to 75 codes
  • bursitis of shoulder (M75.5)
  • enthesopathies (M76-M77)
  • pressure ulcer (pressure area) (L89.-)
From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From M70 Soft tissue disorders related to use, overuse and pressure applies to 75 codes
  • external cause code to identify activity causing disorder (Y93.-)

Notes

General instructions on how these codes are used.

From Chapter 13 (M00-M99) Diseases of the musculoskeletal system and connective tissue applies to 6,687 codes
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name M70.22, its category, or a range that includes it.

Excludes1 2

These codes carry an Excludes1 note naming M70.22: they are not reported together with it, unless the two conditions are unrelated.

  • M65 Synovitis and tenosynovitis
    soft tissue disorders related to use, overuse and pressure (M70.-) names M70.-, which includes this code
  • M71 Other bursopathies
    bursitis related to use, overuse or pressure (M70.-) names M70.-, which includes this code

Excludes2 2

These codes carry an Excludes2 note naming M70.22: its condition is not part of those codes, and both may be reported when the patient has both.

  • M76 Enthesopathies, lower limb, excluding foot
    bursitis due to use, overuse and pressure (M70.-) names M70.-, which includes this code
  • M77 Other enthesopathies
    bursitis due to use, overuse and pressure (M70.-) names M70.-, which includes this code

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR MUS025
Other specified connective tissue disease
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Bursitis

A bursa is a small, fluid-filled sac that acts as a cushion between a bone and other moving parts, such as muscles, tendons, or skin. Bursitis occurs when a bursa becomes inflamed. People get bursitis by overusing a joint. It can also be caused by an injury. It usually occurs at the knee or elbow.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert M70.22 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
726.33 Olecranon bursitis
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About M70.22Overview

What is the ICD-10 code for olecranon bursitis, left elbow?

The ICD-10-CM code for olecranon bursitis, left elbow is M70.22 (sometimes written as M7022). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M70.22 (Olecranon bursitis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report olecranon bursitis, left elbow on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does M70.22 group to?

When olecranon bursitis, left elbow is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 558, with relative weights from 0.8873 to 1.4883 depending on complications. Higher weights mean higher Medicare reimbursement.

Can M70.22 be reported with a code from M71.9?

Not as a rule. The Excludes1 note at M70, which applies to M70.22, lists "bursitis NOS (M71.9-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does M70.22 need an additional code?

When the condition applies, yes. The Use Additional Code note at M70, which applies to M70.22, reads: external cause code to identify activity causing disorder (Y93.-). The additional code is reported after M70.22.