M71.00 — Abscess of bursa, unspecified site

BillableUnspecified

Is M71.00 billable?

Yes, but M71.00 is an unspecified code. M71.00 is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, M71.00 is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting M71.00 — the more specific alternatives are listed below.

More specific alternatives

M71.00 at a glance

Code	M71.00
Description	Abscess of bursa, unspecified site
Billable	Yes
Code set	ICD-10-CM FY2027
Valid for encounters	October 1, 2026 – September 30, 2027

Which MS-DRGs does M71.00 group to?

M71.00 sits in MDC 08 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.

557Tendonitis, Myositis and Bursitis with MCCmedical
558Tendonitis, Myositis and Bursitis without MCCmedical

How is M71.00 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to M71.00. They show the wording a clinician may have documented, which often differs from the Tabular description.

Abscess › bursa (connective tissue) (embolic) (fistulous) (infective) (metastatic) (multiple) (pernicious) (pyogenic) (septic)

Excludes1 — never code together — inherited from M71

The conditions below can never be reported together with M71.00 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.

bunion (M20.1)
bursitis related to use, overuse or pressure (M70.-)
enthesopathies (M76-M77)

Use additional code — inherited from M71.0

Report an additional code alongside M71.00 to fully describe the condition. M71.00 is sequenced first.

code (B95.-, B96.-) to identify causative organism

Excludes2 — not included here — inherited from Chapter 13

The conditions below are not part of M71.00, but a patient may have both at the same time. When documentation supports it, M71.00 and the excluded code may both 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)

How long has M71.00 existed?

M71.00 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.

Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.

Which conditions are coded to M71.00?

ICD-10 code for Abscess