ICD-9 Code 721.91
Spondylosis of unspecified site, with myelopathy
Not Valid for Submission
721.91 is a legacy non-billable code used to specify a medical diagnosis of spondylosis of unspecified site, with myelopathy. This code was replaced on September 30, 2015 by its ICD-10 equivalent.
ICD-9: | 721.91 |
Short Description: | Spondylosis NOS w myelop |
Long Description: | Spondylosis of unspecified site, with myelopathy |
Convert 721.91 to ICD-10
The following crosswalk between ICD-9 to ICD-10 is based based on the General Equivalence Mappings (GEMS) information:
- M47.10 - Other spondylosis with myelopathy, site unspecified
Code Classification
-
Diseases of the musculoskeletal system and connective tissue (710–739)
-
Dorsopathies (720-724)
- 721 Spondylosis and allied disorders
-
Dorsopathies (720-724)
Information for Medical Professionals
Index to Diseases and Injuries
References found for the code 721.91 in the Index of Diseases and Injuries:
- Arthritis arthritic acute chronic subacute 716.9
- deformans SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Osteoarthrosis 715.9- spine 721.90
- with myelopathy 721.91
- spine 721.90
- degenerative SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Osteoarthrosis 715.9- spine 721.90
- with myelopathy 721.91
- spine 721.90
- hypertrophic SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Osteoarthrosis 715.9- spine 721.90
- with myelopathy 721.91
- spine 721.90
- nodosa SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Osteoarthrosis 715.9- spine 721.90
- with myelopathy 721.91
- spine 721.90
- nonpyogenic NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 716.9- spine 721.90
- with myelopathy 721.91
- spine 721.90
- senile or senescent SEE ALSO See Also
A “see also” instruction following a main term in the index instructs that there is another main term that may also be referenced that may provide additional index entries that may be useful. It is not necessary to follow the “see also” note when the original main term provides the necessary code. Osteoarthrosis 715.9- spine 721.90
- with myelopathy 721.91
- spine 721.90
- spine 721.90
- with myelopathy 721.91
- degenerative 721.90
- with myelopathy 721.91
- hypertrophic with deformity 721.90
- with myelopathy 721.91
- nonpyogenic 721.90
- with myelopathy 721.91
- deformans SEE ALSO See Also
- Compression
- spinal cord old or nontraumatic 336.9
- spondylogenic 721.91
- cervical 721.1
- lumbar lumbosacral 721.42
- thoracic 721.41
- spondylogenic 721.91
- spinal cord old or nontraumatic 336.9
- Myelopathy spinal cord 336.9
- due to or with
- spondylosis 721.91
- cervical 721.1
- lumbar lumbosacral 721.42
- thoracic 721.41
- spondylosis 721.91
- spondylogenic NEC NEC "Not elsewhere classifiable"
This abbreviation in the index represents “other specified” when a specific code is not available for a condition the index directs the coder to the “other specified” code in the tabular. 721.91- cervical 721.1
- lumbar lumbosacral 721.42
- thoracic 721.41
- due to or with
- Spondylosis 721.90
- Upper respiratory see condition
- Wenckebach s phenomenon heart block second degree 426.13
- XXY syndrome 758.7
- Zoophilia erotica 302.1
Information for Patients
Spinal Cord Diseases
Your spinal cord is a bundle of nerves that runs down the middle of your back. It carries signals back and forth between your body and your brain. It is protected by your vertebrae, which are the bone disks that make up your spine. If you have an accident that damages the vertebrae or other parts of the spine, this can also injure the spinal cord. Other spinal cord problems include:
- Tumors
- Infections such as meningitis and polio
- Inflammatory diseases
- Autoimmune diseases
- Degenerative diseases such as amyotrophic lateral sclerosis and spinal muscular atrophy
Symptoms vary but might include pain, numbness, loss of sensation and muscle weakness. These symptoms can occur around the spinal cord, and also in other areas such as your arms and legs. Treatments often include medicines and surgery.
[Read More]
Spine Injuries and Disorders
Your backbone, or spine, is made up of 26 bone discs called vertebrae. The vertebrae protect your spinal cord and allow you to stand and bend. A number of problems can change the structure of the spine or damage the vertebrae and surrounding tissue. They include:
- Infections
- Injuries
- Tumors
- Conditions, such as ankylosing spondylitis and scoliosis
- Bone changes that come with age, such as spinal stenosis and herniated disks
Spinal diseases often cause pain when bone changes put pressure on the spinal cord or nerves. They can also limit movement. Treatments differ by disease, but sometimes they include back braces and surgery.
[Read More]
ICD-9 Footnotes
General Equivalence Map Definitions
The ICD-9 and ICD-10 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.
- Approximate Flag - The approximate flag is on, indicating that the relationship between the code in the source system and the code in the target system is an approximate equivalent.
- No Map Flag - The no map flag indicates that a code in the source system is not linked to any code in the target system.
- Combination Flag - The combination flag indicates that more than one code in the target system is required to satisfy the full equivalent meaning of a code in the source system.
Index of Diseases and Injuries Definitions
- And - The word "and" should be interpreted to mean either "and" or "or" when it appears in a title.
- Code also note - A "code also" note instructs that two codes may be required to fully describe a condition, but this note does not provide sequencing direction.
- Code first - Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the 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.
- Type 1 Excludes Notes - A type 1 Excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
- Type 2 Excludes Notes - A type 2 Excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
- Includes Notes - This note appears immediately under a three character code title to further define, or give examples of, the content of the category.
- Inclusion terms - List of terms is included under some codes. These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
- NEC "Not elsewhere classifiable" - This abbreviation in the Alphabetic Index represents "other specified". When a specific code is not available for a condition, the Alphabetic Index directs the coder to the "other specified” code in the Tabular List.
- NOS "Not otherwise specified" - This abbreviation is the equivalent of unspecified.
- See - The "see" instruction following a main term in the Alphabetic Index indicates that another term should be referenced. It is necessary to go to the main term referenced with the "see" note to locate the correct code.
- See Also - A "see also" instruction following a main term in the Alphabetic Index instructs that there is another main term that may also be referenced that may provide additional Alphabetic Index entries that may be useful. It is not necessary to follow the "see also" note when the original main term provides the necessary code.
- 7th Characters - Certain ICD-10-CM categories have applicable 7th characters. The applicable 7th character is required for all codes within the category, or as the notes in the Tabular List instruct. The 7th character must always be the 7th character in the data field. If a code that requires a 7th character is not 6 characters, a placeholder X must be used to fill in the empty characters.
- With - The word "with" should be interpreted to mean "associated with" or "due to" when it appears in a code title, the Alphabetic Index, or an instructional note in the Tabular List. The word "with" in the Alphabetic Index is sequenced immediately following the main term, not in alphabetical order.