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ICD-10-CM Codes
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M00-M99
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M50-M54
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M51-
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2023 ICD-10-CM Diagnosis Code M51.A1
2023 ICD-10-CM Diagnosis Code M51.A1
Intervertebral annulus fibrosus defect, small, lumbar region
2023 - New Code Billable/Specific Code
- M51.A1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- ICD-10-CM M51.A1 is a new 2023 ICD-10-CM code that became effective on October 1, 2022.
- This is the American ICD-10-CM version of M51.A1 - other international versions of ICD-10 M51.A1 may differ.
Code FirstCode First Help
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation. In most cases the manifestation codes will have in the code title, "in diseases classified elsewhere." Codes with this title are a component of the etiology/manifestation convention. The code title indicates that it is a manifestation code. "In diseases classified elsewhere" codes are never permitted to be used as first listed or principle diagnosis codes. They must be used in conjunction with an underlying condition code and they must be listed following the underlying condition.
- , if applicable, lumbar disc herniation (
ICD-10-CM Diagnosis Code M51.06
Intervertebral disc disorders with myelopathy, lumbar region
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Diagnosis Code M51.16
Intervertebral disc disorders with radiculopathy, lumbar region
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
ICD-10-CM Diagnosis Code M51.26
Other intervertebral disc displacement, lumbar region
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
The following code(s) above
M51.A1 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
- Applicable To annotations, or
- Code Also annotations, or
- Code First annotations, or
- Excludes1 annotations, or
- Excludes2 annotations, or
- Includes annotations, or
- Note annotations, or
- Use Additional annotations
that may be applicable to
M51.A1:
- M00-M99
2023 ICD-10-CM Range M00-M99
Diseases of the musculoskeletal system and connective tissueNote- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Type 2 Excludes- 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)
- M50-M54
2023 ICD-10-CM Range M50-M54
Other dorsopathiesType 1 Excludes- current injury - see injury of spine by body region
- discitis NOS (M46.4-)
- M51
ICD-10-CM Diagnosis Code M51
Thoracic, thoracolumbar, and lumbosacral intervertebral disc disorders
2016 2017 2018 2019 2020 2021 2022 2023 Non-Billable/Non-Specific Code
Type 2 Excludes- cervical and cervicothoracic disc disorders (M50.-)
- sacral and sacrococcygeal disorders (M53.3)
- 551 Medical back problems with mcc
- 552 Medical back problems without mcc
Code History
- 2023 (effective 10/1/2022): New code
- Defect, defective Q89.9
ICD-10-CM Diagnosis Code Q89.9
Congenital malformation, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code POA Exempt
Applicable To- Congenital anomaly NOS
- Congenital deformity NOS
ICD-10-CM Codes Adjacent To M51.A1
M51.8 Other thoracic, thoracolumbar and lumbosacral intervertebral disc disorders
M51.84 Other intervertebral disc disorders, thoracic region
M51.85 Other intervertebral disc disorders, thoracolumbar region
M51.86 Other intervertebral disc disorders, lumbar region
M51.87 Other intervertebral disc disorders, lumbosacral region
M51.9 Unspecified thoracic, thoracolumbar and lumbosacral intervertebral disc disorder
M51.A Other lumbar and lumbosacral annulus fibrosus disc defects
M51.A0 Intervertebral annulus fibrosus defect, lumbar region, unspecified size
M51.A1
Intervertebral annulus fibrosus defect, small, lumbar region
M51.A2 Intervertebral annulus fibrosus defect, large, lumbar region
M51.A3 Intervertebral annulus fibrosus defect, lumbosacral region, unspecified size
M51.A4 Intervertebral annulus fibrosus defect, small, lumbosacral region
M51.A5 Intervertebral annulus fibrosus defect, large, lumbosacral region
M53 Other and unspecified dorsopathies, not elsewhere classified
M53.0 Cervicocranial syndrome
M53.1 Cervicobrachial syndrome
M53.2 Spinal instabilities
M53.2X1 …… occipito-atlanto-axial region
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
