M84.550P — Pathological fracture in neoplastic disease, pelvis, subsequent encounter for fracture with malunion
Is M84.550P billable?
Yes — M84.550P is billable for FY2027. M84.550P is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. M84.550P may be submitted for encounters from October 1, 2026 through September 30, 2027.
M84.550P at a glance
| Code | M84.550P |
|---|---|
| Description | Pathological fracture in neoplastic disease, pelvis, subsequent encounter for fracture with malunion |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "P" | subsequent encounter for fracture with malunion |
What does the 7th character "P" mean in M84.550P?
In M84.550P, the 7th character P means subsequent encounter for fracture with malunion. The 7th character is required for M84.550P to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does M84.550P group to?
M84.550P sits in MDC 08 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 564Other Musculoskeletal System and Connective Tissue Diagnoses with MCCmedical
- 565Other Musculoskeletal System and Connective Tissue Diagnoses with CCmedical
- 566Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCCmedical
As a secondary diagnosis, M84.550P is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is M84.550P listed in the Alphabetic Index?
The Alphabetic Index lists these routes under M84.550, the nearest indexed parent of M84.550P. Use them to find the family, then select the specific code.
- Fracture, pathological › due to › neoplastic disease NEC › ilium (pathologic)
- Fracture, pathological › due to › neoplastic disease NEC › ischium (pathologic)
- Fracture, pathological › due to › neoplastic disease NEC › pelvis (pathologic)
Excludes2 — not included here — inherited from Chapter 13
The conditions below are not part of M84.550P, but a patient may have both at the same time. When documentation supports it, M84.550P 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 M84
The conditions below are not part of M84.550P, but a patient may have both at the same time. When documentation supports it, M84.550P and the excluded code may both be reported.
- traumatic fracture of bone-see fracture, by site
Code also — inherited from M84.5
Two codes may be needed to describe the condition fully. Whether M84.550P is sequenced first depends on the reason for the encounter.
- underlying neoplasm
How long has M84.550P existed?
M84.550P has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.