2027 ICD-10-CM Diagnosis Code M71.9Bursopathy, unspecified

ICD-10-CM Codes›M00–M99›M70-M79›M71

ICD-10-CM M71.9
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

M71.9 is a billable ICD-10-CM diagnosis code for bursopathy, unspecified. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified connective tissue disease.

Code Identity

ICD-10-CM Code
M71.9
Billable Status
Yes — Valid for Submission
Code Describes
Bursopathy, unspecified
Short Description
Bursopathy, unspecified
Same as the full description in the CMS dataset.
Parent Code
Other bursopathies

Code Classification

ChapterM00–M99Diseases of the musculoskeletal system and connective tissue
SectionM70-M79Other soft tissue disorders
CategoryM71Other bursopathies
This CodeM71.9Bursopathy, unspecified

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Acute bursitis
  • Bursitis
  • Bursitis of left upper limb
  • Bursitis of lower limb
  • Bursitis of multiple bursa
  • Bursitis of pelvic region
  • Bursitis of right upper limb
  • Bursitis of upper limb
  • Chronic bursitis
  • Disorder of bursa
  • Idiopathic inflammation of bursa
  • Subacute bursitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to M71.9: its own notes plus those printed at M71 and Chapter 13. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Bursitis NOS

Excludes1

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

From M71 Other bursopathies applies to 138 codes
  • bunion (M20.1)
  • bursitis related to use, overuse or pressure (M70.-)
  • enthesopathies (M76-M77)

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 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)

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 M71.9, its category, or a range that includes it.

Excludes1 3

These codes carry an Excludes1 note naming M71.9: they are not reported together with it, unless the two conditions are unrelated.

  • M70 Soft tissue disorders related to use, overuse and pressure
    bursitis NOS (M71.9-)
  • M71.5 Other bursitis, not elsewhere classified
    bursitis NOS (M71.9-)
  • M77 Other enthesopathies
    bursitis NOS (M71.9-)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to 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

Clinical InformationClinical

  • Bursitis

    inflammation or irritation of a synovial bursa, the fibrous sac that acts as a cushion between moving structures of bones, muscles, tendons or skin.

Patient EducationClinical

Joint Disorders

Your joints are places where two or more bones come together. Your shoulders, elbows, hips, knees, and knuckles are all joints. Your spine has joints, too.

The full article covers:

  • What are joints?
  • What are joint disorders?
  • What diseases can affect the joints?
  • What types of joint disorders happen from sudden injuries?
  • What types of joint disorders happen from overuse?
  • How can I keep my joints healthy?

Read the full article at MedlinePlus

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

Convert M71.9 to ICD-9-CMHistory

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

ICD-9-CM
727.9 Synov/tend/bursa dis NOS
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 M71.9Overview

What is the ICD-10 code for bursopathy, unspecified?

The ICD-10-CM code for bursopathy, unspecified is M71.9 (sometimes written as M719). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is M71.9 (Other bursopathies) a billable code?

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

What MS-DRG does M71.9 group to?

When bursopathy, unspecified 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 M71.9 be reported with M20.1?

Not as a rule. The Excludes1 note at M71, which applies to M71.9, lists "bunion (M20.1)". 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).

What is the ICD-9 equivalent of M71.9?

Under the General Equivalence Mappings, bursopathy, unspecified converts to ICD-9-CM 727.9 (synov/tend/bursa dis NOS). The mapping is approximate, so confirm the match fits the documentation.