M71.58 classifies non-infectious, non-pressure-related bursitis at a site not captured by any other specific M71.5x subcategory — a true NEC (not elsewhere classified) catch-all for atypical bursal locations.

Verified May 8, 2026 · 4 sources ↓

Status: Billable
Chapter: 13
Related CPT: 5
Region: Other

Drawn from CDCCMSICD

Documentation tips

What should appear in the chart to support M71.58.

Source · Editorial brief grounded in 4 cited references ↓

Provider must name the specific anatomic site of the bursa — 'other site' is only valid when the location genuinely falls outside elbow, wrist, hand, hip, knee, and ankle/foot.
Distinguish between non-infectious bursitis (M71.58) and infectious bursitis (M71.18); document whether infection is present or ruled out.
If bursitis is attributed to repetitive use, overuse, or sustained pressure, the encounter belongs in M70 — document etiology explicitly to avoid a category error.
For shoulder involvement, document 'shoulder bursitis' separately so the coder can route to M75.5 rather than M71.58.
When the foot is the site of bursitis and it's not calcaneal (M77.5x) or related to heel pain syndrome (M77.3x), CMS guidance supports M71.58 — document the specific foot bursa involved.
Imaging or aspiration findings confirming bursal fluid or bursal wall thickening strengthen medical necessity for injection or procedural billing.

Related CPT procedures

Procedure codes commonly billed with M71.58. Linking the right diagnosis to the right procedure is what establishes medical necessity.

Source · CMS LCDs · AAOS specialty guidance · claims-pattern analysis

20610 $68.81

Aspiration and/or injection of a major joint or bursa (shoulder, hip, knee, or subacromial bursa) performed without ultrasound guidance.

20611 $104.21

Aspiration or injection of a major joint or bursa performed under real-time ultrasound guidance, with permanent image documentation.

27093 $232.47

Injection of contrast material into the hip joint to enable arthrographic X-ray imaging, performed without anesthesia.

27095 $325.66

Injection into the hip joint with anesthesia to introduce contrast material for arthrographic imaging of the hip.

76942 View procedure details

Common coding pitfalls

The recurring mistakes coders make with M71.58 and adjacent codes.

Source · Editorial brief grounded in CDC ICD-10-CM tabular guidance, AAOS coding references, and cited references ↓

Defaulting to M71.58 for shoulder bursitis — shoulder routes to M75.5, which is an Excludes1 conflict with M71.5.
Using M71.58 when bursitis is tied to overuse or pressure; those cases belong in the M70 category, not M71.
Selecting M71.58 for ankle-and-foot bursitis when the ankle is the true site — M71.571 (right) or M71.572 (left) should be used; M71.58 is specifically appropriate for foot-only involvement per CMS asterisk guidance.
Confusing M71.58 (non-infectious, other site) with M71.18 (other infective bursitis, other site) — always check for documented infection before selecting the code.
Coding M71.58 when bursitis NOS is the only documentation — unspecified bursitis without a site belongs at M71.9, not M71.58.

Clinical context

Source · Editorial summary grounded in 4 cited references ↓

M71.58 falls under parent code M71.5 (Other bursitis, not elsewhere classified) and applies when bursitis is documented at a location that doesn't map to the subcategories covering elbow (M71.52x), wrist (M71.53x), hand (M71.54x), hip (M71.55x), knee (M71.56x), or ankle/foot (M71.57x). Clinically appropriate sites include the chest wall, spinous process bursae, ischial bursa (when not coded elsewhere), gluteal bursae, or any uncommon anatomic location the provider has specifically documented.

Important CMS billing guidance (Draft Article DA52863) flags M71.58 with an asterisk noting it should also be used for bursitis in the foot — a nuance that catches many coders off-guard, since the foot is anatomically distinct from 'ankle and foot' as coded in M71.571/M71.572. Review whether the foot vs. ankle distinction affects the encounter before selecting M71.57x.

M71.5 carries explicit Excludes1 notes: shoulder bursitis routes to M75.5, tibial collateral bursitis (Pellegrini-Stieda) routes to M76.4, and bursitis NOS routes to M71.9. Bursitis related to use, overuse, or pressure is excluded from the entire M71 category and belongs in M70. If the bursitis is infectious, use M71.18 (other infective bursitis, other site) instead.

Sibling codes

Other billable codes under M71.5 (laterality / anatomic variants).

M71.50

Other bursitis, not elsewhere classified, unspecified site

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 4 cited references ↓

01When is M71.58 appropriate instead of a more specific M71.5x code?

Use M71.58 only when the documented bursal site is not elbow, wrist, hand, hip, knee, or ankle/foot. If one of those six sites is documented, a more specific subcategory is required and M71.58 is invalid for that encounter.

02Can M71.58 be used for foot bursitis?

Yes. CMS Draft Article DA52863 specifically instructs coders to use M71.58 for bursitis in the foot — distinct from ankle-and-foot (M71.57x). Calcaneal bursitis routes to M77.5x and heel pain syndrome to M77.3x, so confirm the specific structure involved before coding.

03What is the difference between M71.58 and M71.9?

M71.58 requires a documented specific site that falls outside the named subcategories. M71.9 (Bursopathy, unspecified / Bursitis NOS) is for encounters where no site is documented at all. If the chart names a site, M71.58 is more appropriate — do not use M71.9 when the location is known.

04Does M71.58 apply to shoulder bursitis?

No. Shoulder bursitis is an Excludes1 exclusion from M71.5 and codes to M75.5. Assigning M71.58 for the shoulder would be a coding error and could result in a claim denial or audit flag.

05Is M71.58 valid for bursitis caused by repetitive occupational use?

No. Bursitis related to use, overuse, or pressure is excluded from the entire M71 category. Those conditions belong in M70 (soft tissue disorders related to use, overuse, and pressure). The provider's documentation of etiology determines which category applies.

06What CPT procedures are commonly paired with M71.58?

Bursa injections (20610, 20611) are the most common procedural pairings. Ultrasound guidance (76942) may accompany injection at atypical sites. Confirm that procedure and diagnosis sites align in documentation — a claim pairing M71.58 with a knee-specific procedure code raises a consistency flag.

07Does M71.58 require a 7th character extension?

No. M-codes in Chapter 13 do not use 7th-character extensions. The 7th-character A/D/S convention applies to injury codes (S-codes) in Chapter 19, not to musculoskeletal disease codes like M71.58.

Sources & references

Editorial content was developed using the following public sources. Last verified May 8, 2026.

01CDC ICD-10-CM Tabular List 2026 — https://www.cdc.gov/nchs/icd/icd-10-cm/index.html
02CMS Draft Article DA52863: Billing and Coding — Pain Management (injection of tendon sheaths, ligaments, bursa, and ganglion cysts) — https://www.cms.gov/medicare-coverage-database/view/article.aspx?articleId=60304&ver=3
03ICD-10-CM Official Guidelines for Coding and Reporting FY2025 — https://ftp.cdc.gov/pub/health_statistics/nchs/publications/ICD10CM/2025-Update/ICD-10-CM-April-1-FY25-Guidelines.pdf
04ICD-10 Tabular List 2025, CDC NCHS — https://www.cdc.gov/nchs/nvss/manuals/2025/2e-vol1-2025.html

Mira AI Scribe

Mira AI Scribe captures the specific bursal location by anatomic name, rules out infectious etiology, and notes whether the condition is related to overuse or pressure — locking in the M71.58 'other site' designation and preventing downcoding to M71.9 (bursitis NOS) or a misdirect to M70 or M75.5 that would trigger a claim edit.

See how Mira captures M71.58 documentation