M48.4 — Fatigue fracture of vertebra
M48.4 is a non-billable header ICD-10-CM code for fatigue fracture of vertebra. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from subcategory M48.4:
- A
- initial encounter for fracture
- D
- subsequent encounter for fracture with routine healing
- G
- subsequent encounter for fracture with delayed healing
- S
- sequela of fracture
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Stress fracture of vertebra
Other codes that can never be billed with M48.4
These codes carry an Excludes1 note pointing at M48.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading M48.4 alone.
- M48.5Collapsed vertebra, not elsewhere classified
Risk adjustment
M48.4 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead M48.4
9 child codes. Green means billable.
- M48.40Fatigue fracture of vertebra, site unspecified
- M48.41Fatigue fracture of vertebra, occipito-atlanto-axial region
- M48.42Fatigue fracture of vertebra, cervical region
- M48.43Fatigue fracture of vertebra, cervicothoracic region
- M48.44Fatigue fracture of vertebra, thoracic region
- M48.45Fatigue fracture of vertebra, thoracolumbar region
- M48.46Fatigue fracture of vertebra, lumbar region
- M48.47Fatigue fracture of vertebra, lumbosacral region
- M48.48Fatigue fracture of vertebra, sacral and sacrococcygeal region
Related codes at this level
Codes that share M48. If M48.4 is not quite right, the correct code is usually one of these.
Questions about M48.4
- Is M48.4 a billable ICD-10-CM code?
- No. M48.4 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M48.4 sit in the tabular list?
- Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Spondylopathies (M45-M49).
- What cannot be coded together with M48.4?
- M48.4 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.