M80.8AXK — Other osteoporosis with current pathological fracture, other site, subsequent encounter for fracture with nonunion
Is M80.8AXK billable?
Yes — M80.8AXK is billable for FY2027.
M80.8AXK is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M80.8AXK may be submitted for encounters from October 1, 2026 through September 30, 2027.
M80.8AXK at a glance
| Code | M80.8AXK |
|---|---|
| Description | Other osteoporosis with current pathological fracture, other site, subsequent encounter for fracture with nonunion |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "K" | subsequent encounter for fracture with nonunion |
What does the 7th character "K" mean in M80.8AXK?
In M80.8AXK, the 7th character K means subsequent encounter for fracture with nonunion. The 7th character is required for M80.8AXK to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does M80.8AXK group to?
M80.8AXK 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.
- 521Hip Replacement with Principal Diagnosis of Hip Fracture with MCCsurgical
- 522Hip Replacement with Principal Diagnosis of Hip Fracture without MCCsurgical
As a secondary diagnosis, M80.8AXK is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is M80.8AXK listed in the Alphabetic Index?
The Alphabetic Index lists these routes under M80.8A, the nearest indexed parent of M80.8AXK. Use them to find the family, then select the specific code.
- Osteoporosis › disuse › with current pathological fracture › site specified NEC
- Osteoporosis › specified type NEC › with pathological fracture › site specified NEC
Excludes1 — never code together — inherited from M80
The conditions below can never be reported together with M80.8AXK on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from M80
Report an additional code alongside M80.8AXK to fully describe the condition. M80.8AXK is sequenced first.
- code to identify major osseous defect, if applicable (M89.7-)
Use additional code — inherited from M80.8
Report an additional code alongside M80.8AXK to fully describe the condition. M80.8AXK is sequenced first.
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M80.8AXK, but a patient may have both at the same time. When documentation supports it, M80.8AXK 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)
Excludes2 — not included here — inherited from M80
The conditions below are not part of M80.8AXK, but a patient may have both at the same time. When documentation supports it, M80.8AXK and the excluded code may both be reported.
- personal history of (healed) osteoporosis fracture (Z87.310)
How long has M80.8AXK existed?
M80.8AXK first appears in FY2021 (FY2020 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.