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ICD-10/M84.751P

M84.751P ICD-10-CM Code: Incomplete atypical femoral fracture, right leg, subsequent encounter for fracture with malunion

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0, Appendix B.

  • MS-DRG 521 — HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITH MCC (MDC 08)
  • MS-DRG 522 — HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITHOUT MCC (MDC 08)
  • MS-DRG 564 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC (MDC 08)
  • MS-DRG 565 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC (MDC 08)
  • MS-DRG 566 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC (MDC 08)

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Official Registry Overview & Definition

Incomplete atypical femoral fracture, right leg, subsequent encounter for fracture with malunion is a billable ICD-10-CM diagnosis code (M84.751P).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for M84.751P in the official ICD-10-CM tabular list.

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

  • traumatic fracture of bone-see fracture, by site

Change history

  • FY2017 — 2016-10-01
    Added to the code set
    Incomplete atypical femoral fracture, right leg, subsequent encounter for fracture with malunion
    FY2017 changes

Verify Before Coding

  • Billable — reportable as written.

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Contextual Map

Every relationship of M84.751P in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • M00-M99 — Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (M00-M99) (M00-M99) [Hierarchy]
  • M80-M85 — Disorders of bone density and structure [Hierarchy]

Clinical classification (CCSR)

  • MUS019 — Atypical fracture, subsequent encounter [CCSR]

Potential MS-DRG

  • DRG 521 — HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITH MCC [MS-DRG]: “HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITH MCC (MDC 08)”
  • DRG 522 — HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITHOUT MCC [MS-DRG]: “HIP REPLACEMENT WITH PRINCIPAL DIAGNOSIS OF HIP FRACTURE WITHOUT MCC (MDC 08)”
  • DRG 564 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC [MS-DRG]: “OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH MCC (MDC 08)”
  • DRG 565 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC [MS-DRG]: “OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITH CC (MDC 08)”
  • DRG 566 — OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC [MS-DRG]: “OTHER MUSCULOSKELETAL SYSTEM AND CONNECTIVE TISSUE DIAGNOSES WITHOUT CC/MCC (MDC 08)”

MDC crossing · procedures (18508)

  • MDC 08 — Diseases and Disorders of the Musculoskeletal System and Connective Tissue [MDC crossing]: “Diseases and Disorders of the Musculoskeletal System and Connective Tissue — the grouper's crossing between diagnoses and procedures: a principal diagnosis sets the MDC, and same-MDC procedures move the stay to its surgical DRGs.”
  • 005T0ZZ — Destruction of Spinal Meninges, Open Approach [Same-MDC procedure]: “Destruction of Spinal Meninges, Open Approach — grouped in MDC 08, the procedure side of this code's crossing.” · check together
  • 005T3ZZ — Destruction of Spinal Meninges, Percutaneous Approach [Same-MDC procedure]: “Destruction of Spinal Meninges, Percutaneous Approach — grouped in MDC 08, the procedure side of this code's crossing.” · check together
  • 005T4ZZ — Destruction of Spinal Meninges, Percutaneous Endoscopic Approach [Same-MDC procedure]: “Destruction of Spinal Meninges, Percutaneous Endoscopic Approach — grouped in MDC 08, the procedure side of this code's crossing.” · check together
  • 005W0Z3 — Destruction of Cervical Spinal Cord using Laser Interstitial Thermal Therapy, Open Approach [Same-MDC procedure]: “Destruction of Cervical Spinal Cord using Laser Interstitial Thermal Therapy, Open Approach — grouped in MDC 08, the procedure side of this code's crossing.” · check together
  • 005W0ZZ — Destruction of Cervical Spinal Cord, Open Approach [Same-MDC procedure]: “Destruction of Cervical Spinal Cord, Open Approach — grouped in MDC 08, the procedure side of this code's crossing.” · check together
  • and 18503 more

Index entries

  • Fracture, nontraumatic, NEC, atypical, femur, incomplete, right side[Index term]

Nearest codes (40)

  • M84 — Disorder of continuity of bone [Sibling]
  • M84.68XA — Pathological fracture in other disease, other site, initial encounter for fracture [Sibling]
  • M84.68XD — Pathological fracture in other disease, other site, subsequent encounter for fracture with routine healing [Sibling]
  • M84.68XG — Pathological fracture in other disease, other site, subsequent encounter for fracture with delayed healing [Sibling]
  • M84.68XK — Pathological fracture in other disease, other site, subsequent encounter for fracture with nonunion [Sibling]
  • M84.68XP — Pathological fracture in other disease, other site, subsequent encounter for fracture with malunion [Sibling]
  • M84.68XS — Pathological fracture in other disease, other site, sequela [Sibling]
  • M84.7 — Nontraumatic fracture, not elsewhere classified [Sibling]
  • and 32 more

Change history

  • FY2017 — Added to the code set [Change history]

Relationships & Classification

Clinical classification (AHRQ CCSR):MUS019 — Atypical fracture, subsequent encounter (default).

Clinical Classifications Software Refined (CCSR) for ICD-10-CM Diagnoses. Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality.

Potential MS-DRG Relationships (FY2026)

Not on the CMS CC/MCC list — as a secondary diagnosis this code does not change MS-DRG severity.

Named in the grouper logic of 5 MS-DRGs: DRG 521 (MDC 08), DRG 522 (MDC 08), DRG 564 (MDC 08), DRG 565 (MDC 08), DRG 566 (MDC 08).

From the CMS MS-DRG Definitions Manual (Appendices B and C). Actual DRG assignment depends on the complete claim.

Frequently Asked Questions (FAQ) & Clinical Guidance

Does M84.751P require a 7th character?

Yes. The appropriate 7th character is to be added to each code from M84.75:.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to M84.751P in its code family, with their registry titles.

  • M84.751 — Incomplete atypical femoral fracture, right leg
  • M84.751A — Incomplete atypical femoral fracture, right leg, initial encounter for fracture
  • M84.751D — Incomplete atypical femoral fracture, right leg, subsequent encounter for fracture with routine healing
  • M84.751G — Incomplete atypical femoral fracture, right leg, subsequent encounter for fracture with delayed healing
  • M84.751K — Incomplete atypical femoral fracture, right leg, subsequent encounter for fracture with nonunion
  • M84.751S — Incomplete atypical femoral fracture, right leg, sequela
  • M84.752 — Incomplete atypical femoral fracture, left leg
  • M84.752A — Incomplete atypical femoral fracture, left leg, initial encounter for fracture
  • M84.752D — Incomplete atypical femoral fracture, left leg, subsequent encounter for fracture with routine healing
  • M84.752G — Incomplete atypical femoral fracture, left leg, subsequent encounter for fracture with delayed healing

View all codes in the M84 family

Indexed Clinical Terms (1)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Fracture, nontraumatic, NEC, atypical, femur, incomplete, right side