2027 ICD-10-CM Diagnosis Code M71.38Other bursal cyst, other site
ICD-10-CM Codes›M00–M99›M70-M79›M71
- Billable — Valid for Submission
- Not Chronic
M71.38 is a billable ICD-10-CM diagnosis code for other bursal cyst, other site. 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 arthropathy of lumbar facet joint. 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.
- Arthropathy of lumbar facet joint
- Synovial cyst of lumbar spine
- Synovial cyst of sacrum
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M71.38: its own notes plus those printed at M71.3, 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)
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.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name M71.38, its category, or a range that includes it.
Excludes2 2
These codes carry an Excludes2 note naming M71.38: its condition is not part of those codes, and both may be reported when the patient has both.
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.
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 M71.38 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M71.38Overview
What is the ICD-10 code for other bursal cyst, other site?
The ICD-10-CM code for other bursal cyst, other site is M71.38 (sometimes written as M7138). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M71.38 (Other bursal cyst) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report other bursal cyst, other site on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M71.38 group to?
When other bursal cyst, other site 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 M71.38 be reported with a code from M66.1?
Not as a rule. The Excludes1 note at M71.3, which applies to M71.38, lists "synovial cyst with rupture (M66.1-)". 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 M71.38?
Under the General Equivalence Mappings, other bursal cyst, other site converts to ICD-9-CM 727.49 (bursal cyst NEC). The mapping is approximate, so confirm the match fits the documentation.
