2027 ICD-10-CM Diagnosis Code M71.169Other infective bursitis, unspecified knee
ICD-10-CM Codes›M00–M99›M70-M79›M71
- Billable — Valid for Submission
- Not Chronic
M71.169 is a billable ICD-10-CM diagnosis code for other infective bursitis, unspecified knee. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 400, 557 through 558. Coders also document this condition as infectious bursitis of knee. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified connective tissue disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Infectious bursitis of knee
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M71.169: its own notes plus those printed at M71.1, M71, and Chapter 13. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
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.
- 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.
Notes
General instructions on how these codes are used.
- 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.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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 M71.169 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M71.169Overview
What is the ICD-10 code for other infective bursitis, unspecified knee?
The ICD-10-CM code for other infective bursitis, unspecified knee is M71.169 (sometimes written as M71169). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M71.169 (Other infective bursitis, knee) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other infective bursitis, unspecified knee on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M71.169 group to?
When other infective bursitis, unspecified knee is the principal diagnosis on an inpatient stay, it groups to MS-DRG 557, 400, 558, with relative weights from 0.8873 to 2.0249 depending on complications. Higher weights mean higher Medicare reimbursement.
Can M71.169 be reported with M20.1?
Not as a rule. The Excludes1 note at M71, which applies to M71.169, 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).
