M48.51XA

Collapsed vertebra, not elsewhere classified, occipito-atlanto-axial region, initial encounter for fracture

Risk-adjusting (HCC)Billable code

HCC risk adjustment mapping

CMS-HCC V28

HCC401

Vertebral Fractures without Spinal Cord Injury

CMS-HCC ESRD V24

HCC169

Vertebral Fractures without Spinal Cord Injury

RxHCC V08

RXHCC87

Osteoporosis, Vertebral and Pathological Fractures

Coding notes

Excludes 1 never coded together · Excludes 2 may co-exist

Inherited from M48.5Collapsed vertebra, not elsewhere classified
Excludes 1

current injury - see Injury of spine, by body region fatigue fracture of vertebra (M48.4) pathological fracture of vertebra due to neoplasm (M84.58) pathological fracture of vertebra due to other diagnosis (M84.68) pathological fracture of vertebra due to osteoporosis (M80.-) pathological fracture NOS (M84.4-) stress fracture of vertebra (M48.4-) traumatic fracture of vertebra (S12.-, S22.-, S32.-)

Synonyms

Collapsed vertebra NOS Compression fracture of vertebra NOS Wedging of vertebra NOS

7th character

The appropriate 7th character is to be added to each code from subcategory M48.5:

Valid 7th characters and their meanings
CharacterMeaning
Ainitial encounter for fracture
Dsubsequent encounter for fracture with routine healing
Gsubsequent encounter for fracture with delayed healing
Ssequela of fracture
Inherited from chapter 13Diseases of the musculoskeletal system and connective tissue
Excludes 2

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)

Note

Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition (M00-M25) Arthropathies (M00-M25) Includes: Disorders affecting predominantly peripheral (limb) joints (M40-M54) Dorsopathies (M40-M54) (M60-M79) Soft tissue disorders (M60-M79) (M80-M94) Osteopathies and chondropathies (M80-M94)

Official Guidelines for M48.51XA

FY 2026 ›