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ICD-10/M80.0AXK

M80.0AXK ICD-10-CM Code: Age-related osteoporosis with current pathological fracture, other site, subsequent encounter for fracture with nonunion

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 (FY2026), 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.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Age-related osteoporosis with current pathological fracture, other site, subsequent encounter for fracture with nonunion is a billable ICD-10-CM diagnosis code (M80.0AK).

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for M80.0AXK in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • osteoporosis with current fragility fracture

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • collapsed vertebra NOS (M48.5)
  • pathological fracture NOS (M84.4)
  • wedging of vertebra NOS (M48.5)

Excludes2 — Not Included Here

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

  • personal history of (healed) osteoporosis fracture (Z87.310)

Use Additional Code

Supplementary codes the tabular list directs you to add.

  • Use additional code to identify major osseous defect, if applicable (M89.7-)

Frequently Asked Questions (FAQ) & Clinical Guidance

Does M80.0AXK require a 7th character?

Yes. The appropriate 7th character is to be added to each code from category M80:.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to M80.0AXK in its code family, with their registry titles.

  • M80.08XS — Age-related osteoporosis with current pathological fracture, vertebra(e), sequela
  • M80.0A — Age-related osteoporosis with current pathological fracture, other site
  • M80.0AXA — Age-related osteoporosis with current pathological fracture, other site, initial encounter for fracture
  • M80.0AXD — Age-related osteoporosis with current pathological fracture, other site, subsequent encounter for fracture with routine healing
  • M80.0AXG — Age-related osteoporosis with current pathological fracture, other site, subsequent encounter for fracture with delayed healing
  • M80.0AXP — Age-related osteoporosis with current pathological fracture, other site, subsequent encounter for fracture with malunion
  • M80.0AXS — Age-related osteoporosis with current pathological fracture, other site, sequela
  • M80.0B — Age-related osteoporosis with current pathological fracture, pelvis
  • M80.0B1 — Age-related osteoporosis with current pathological fracture, right pelvis
  • M80.0B1A — Age-related osteoporosis with current pathological fracture, right pelvis, initial encounter for fracture

View all codes in the M80 family