2027 ICD-10-CM Diagnosis Code M79.5Residual foreign body in soft tissue
ICD-10-CM Codes›M00–M99›M70-M79›M79
- Billable — Valid for Submission
- Not Chronic
M79.5 is a billable ICD-10-CM diagnosis code for residual foreign body in soft tissue. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 564 through 566. 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.
- Foreign body in middle ear
- Foreign body in skin wound
- Foreign body in subcutaneous tissue
- Foreign body left in wound
- Metal foreign body in trunk
- Multiple retained foreign bodies in soft tissue
- Old foreign body in middle ear
- Open injury with foreign body in wound
- Residual foreign body in soft tissue
- Retained foreign body in multiple soft tissue sites
- Retained foreign body of middle ear
- Right ventricular outflow tract obstruction due to foreign body
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to M79.5: its own notes plus those printed at M79 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 M79.5, its category, or a range that includes it.
Excludes1 1
These codes carry an Excludes1 note naming M79.5: they are not reported together with it, unless the two conditions are unrelated.
- Z03.82 Encounter for observation for suspected foreign body ruled outresidual foreign body in soft tissue (M79.5)
Excludes2 1
These codes carry an Excludes2 note naming M79.5: its condition is not part of those codes, and both may be reported when the patient has both.
- Block T15-T19 Effects of foreign body entering through natural orificeresidual foreign body in soft tissue (M79.5)
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
Foreign Bodies
If you've ever gotten a splinter or had sand in your eye, you've had experience with a foreign body. A foreign body is something that is stuck inside you but isn't supposed to be there. You may inhale or swallow a foreign body, or you may get one from an injury to almost any part of your body.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert M79.5 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About M79.5Overview
What is the ICD-10 code for residual foreign body in soft tissue?
The ICD-10-CM code for residual foreign body in soft tissue is M79.5 (sometimes written as M795). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is M79.5 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report residual foreign body in soft tissue on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does M79.5 group to?
When residual foreign body in soft tissue is the principal diagnosis on an inpatient stay, it groups to MS-DRG 564, 566, 565, with relative weights from 0.7374 to 1.4909 depending on complications. Higher weights mean higher Medicare reimbursement.
Can M79.5 be reported with L92.3?
Not as a rule. The Excludes1 note on M79.5 lists "foreign body granuloma of skin and subcutaneous tissue (L92.3)". 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 M79.5?
Under the General Equivalence Mappings, residual foreign body in soft tissue converts to ICD-9-CM 729.6 (old FB in soft tissue). The mapping is a direct match.
