ICD-10-CM · Hip

M70.71

M70.71 identifies non-trochanteric bursitis of the right hip — covering iliopsoas bursitis, ischiogluteal bursitis, and other hip bursa inflammation that is not classified as trochanteric (M70.61).

Verified May 8, 2026 · 6 sources ↓

Status
Billable
Chapter
13
Related CPT
6
Region
Hip
Drawn from CDCICD10DataAAPCCMSIcdcodes

Documentation tips

What should appear in the chart to support M70.71.

Source · Editorial brief grounded in 6 cited references ↓

  • Document the specific bursa involved by name (iliopsoas, ischiogluteal, or other) to distinguish M70.71 from trochanteric bursitis (M70.61) and to withstand audit scrutiny.
  • Explicitly state laterality as 'right hip' in the assessment — vague documentation such as 'hip bursitis' will force a drop to M70.70 (unspecified) and may trigger a downcode or denial.
  • Record clinical findings that confirm bursitis: point tenderness over the affected bursa, pain provocation tests (e.g., FABER, hip flexion against resistance for iliopsoas), and any ultrasound or MRI findings showing bursal distension or inflammation.
  • If conservative care (NSAIDs, physical therapy, activity modification) preceded the visit, document its duration and outcome — this supports medical necessity for injection or advanced imaging.
  • For bilateral presentations, document each side separately in the assessment and plan so both M70.71 and M70.72 can be coded without an auditor challenging the bilateral claim.

Related CPT procedures

Procedure codes commonly billed with M70.71. Linking the right diagnosis to the right procedure is what establishes medical necessity.

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

Common coding pitfalls

The recurring mistakes coders make with M70.71 and adjacent codes.

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

  • Coding M70.71 when the provider documented 'trochanteric bursitis' — that maps to M70.61 (right) not M70.71; the M70.7 subcategory is explicitly for non-trochanteric hip bursitis.
  • Using M70.70 (unspecified laterality) when the note clearly states right hip — unspecified codes invite payer queries and can trigger claim denial on laterality-sensitive LCDs.
  • Reporting a single code for bilateral hip bursitis instead of pairing M70.71 (right) and M70.72 (left) — there is no bilateral combination code in the M70.7 subcategory.
  • Confusing M70.71 with M71.151 (other infective bursitis, right hip) — if the bursitis has an infectious etiology, the M71 code family is correct; M70.71 is for non-infective bursitis.
  • Omitting a laterality modifier on the injection CPT code (e.g., 20610) when M70.71 is the supporting diagnosis — the RT modifier should accompany the procedure to match the laterality documented.

Clinical context

Source · Editorial summary grounded in 6 cited references ↓

Use M70.71 when the provider documents bursitis of the right hip at a bursa other than the greater trochanteric bursa. Common clinical presentations include iliopsoas bursitis (anterior groin pain, pain with hip flexion) and ischiogluteal bursitis (pain over the ischial tuberosity, aggravated by sitting). The key distinction from M70.61 (trochanteric bursitis, right hip) is bursa location — if the provider documents trochanteric or greater trochanteric bursitis, M70.61 is correct, not M70.71.

Within the M70.7 family: M70.70 is unspecified laterality, M70.71 is right hip, M70.72 is left hip. If bilateral hip bursitis of this type is present, code M70.71 and M70.72 together — there is no single bilateral code in this subcategory. Do not collapse both sides into M70.70.

M70.71 maps to MS-DRG 557 (Tendonitis, Myositis and Bursitis with MCC) or 558 (without MCC) under MS-DRG v43.0. CMS recognizes M70.71 as a supporting diagnosis for bursa injection procedures under pain management LCD coverage, making correct code selection directly relevant to injection claim adjudication.

Sibling codes

Other billable codes under M70.7 (laterality / anatomic variants).

Frequently asked questions

Source · Generated from the editorial pipeline, verified against 6 cited references ↓

01What is the difference between M70.61 and M70.71 for right hip bursitis?
M70.61 is trochanteric bursitis of the right hip (greater trochanteric bursa). M70.71 is all other non-trochanteric right hip bursitis — iliopsoas, ischiogluteal, and similar. The provider's documentation of bursa location determines which code applies; 'hip bursitis' without further specification should prompt a query before coding.
02Can I use M70.71 alone for bilateral hip bursitis?
No. M70.71 is right hip only. Code bilateral non-trochanteric hip bursitis with both M70.71 (right) and M70.72 (left). M70.70 (unspecified) is not a substitute for bilateral — it means laterality is unknown, not that both sides are affected.
03Does M70.71 support medical necessity for a hip bursa injection billed with CPT 20610?
Yes. CMS's draft LCD for pain management injections (bursa) lists M70.71 explicitly as a supporting diagnosis. Pair the claim with modifier RT on CPT 20610 to match the right-sided laterality documented in the encounter.
04Is imaging required to code M70.71?
Imaging is not required by ICD-10-CM coding rules, but payers increasingly expect clinical validation. Document bursa-specific tenderness and provocative test results at minimum; ultrasound or MRI findings showing bursal distension strengthen the record against audit.
05What DRG does M70.71 map to for inpatient admissions?
M70.71 maps to MS-DRG 557 (Tendonitis, Myositis and Bursitis with MCC) or MS-DRG 558 (without MCC) under MS-DRG v43.0. The presence or absence of a major comorbidity/complication drives which DRG — and thus the payment weight — is assigned.
06How should I code right hip bursitis that is confirmed to be infectious?
Do not use M70.71 for infectious bursitis. Infectious or infective bursitis of the right hip is coded M71.151 (Other infective bursitis, right hip). M70.71 is reserved for non-infective bursitis. An additional code for the causative organism may also be required.
07Does M70.71 require a 7th character?
No. M70.71 is a 5-character code and is billable as written. The 7th-character extension convention (A/D/S) applies to injury S-codes, not to M-code musculoskeletal diagnosis codes like M70.71.

Mira AI Scribe

Mira's AI scribe captures bursa location (iliopsoas, ischiogluteal, or other non-trochanteric), confirmed laterality (right), provocative exam findings, imaging results showing bursal inflammation, and prior conservative treatment — all from the encounter note. That documentation chain locks in M70.71 specificity, prevents a downcode to M70.70, and satisfies CMS LCD requirements for bursa injection claims.

See how Mira captures M70.71 documentation

Related ICD-10 codes

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