ICD-10-CM category
M79: Other and unspecified soft tissue disorders, not elsewhere classified
Codes under M79 (Other and unspecified soft tissue disorders, not elsewhere classified). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| M79.0 | Rheumatism, unspecified | ✓ |
| M79.0 | Rheumatism, unspecified | ✓ |
| M79.1 | Myalgia | — |
| M79.1 | Myalgia | — |
| M79.2 | Neuralgia and neuritis, unspecified | ✓ |
| M79.2 | Neuralgia and neuritis, unspecified | ✓ |
| M79.3 | Panniculitis, unspecified | ✓ |
| M79.3 | Panniculitis, unspecified | ✓ |
| M79.4 | Hypertrophy of (infrapatellar) fat pad | ✓ |
| M79.4 | Hypertrophy of (infrapatellar) fat pad | ✓ |
| M79.5 | Residual foreign body in soft tissue | ✓ |
| M79.5 | Residual foreign body in soft tissue | ✓ |
| M79.6 | Pain in limb, hand, foot, fingers and toes | — |
| M79.6 | Pain in limb, hand, foot, fingers and toes | — |
| M79.7 | Fibromyalgia | ✓ |
| M79.7 | Fibromyalgia | ✓ |
| M79.8 | Other specified soft tissue disorders | — |
| M79.8 | Other specified soft tissue disorders | — |
| M79.9 | Soft tissue disorder, unspecified | ✓ |
| M79.9 | Soft tissue disorder, unspecified | ✓ |
| M79.10 | Myalgia, unspecified site | ✓ |
| M79.10 | Myalgia, unspecified site | ✓ |
| M79.11 | Myalgia of mastication muscle | ✓ |
| M79.11 | Myalgia of mastication muscle | ✓ |
| M79.12 | Myalgia of auxiliary muscles, head and neck | ✓ |
| M79.12 | Myalgia of auxiliary muscles, head and neck | ✓ |
| M79.18 | Myalgia, other site | ✓ |
| M79.18 | Myalgia, other site | ✓ |
| M79.60 | Pain in limb, unspecified | — |
| M79.60 | Pain in limb, unspecified | — |
| M79.62 | Pain in upper arm | — |
| M79.62 | Pain in upper arm | — |
| M79.63 | Pain in forearm | — |
| M79.63 | Pain in forearm | — |
| M79.64 | Pain in hand and fingers | — |
| M79.64 | Pain in hand and fingers | — |
| M79.65 | Pain in thigh | — |
| M79.65 | Pain in thigh | — |
| M79.66 | Pain in lower leg | — |
| M79.66 | Pain in lower leg | — |
| M79.67 | Pain in foot and toes | — |
| M79.67 | Pain in foot and toes | — |
| M79.81 | Nontraumatic hematoma of soft tissue | ✓ |
| M79.81 | Nontraumatic hematoma of soft tissue | ✓ |
| M79.89 | Other specified soft tissue disorders | ✓ |
| M79.89 | Other specified soft tissue disorders | ✓ |
| M79.601 | Pain in right arm | ✓ |
| M79.601 | Pain in right arm | ✓ |
| M79.602 | Pain in left arm | ✓ |
| M79.602 | Pain in left arm | ✓ |
| M79.603 | Pain in arm, unspecified | ✓ |
| M79.603 | Pain in arm, unspecified | ✓ |
| M79.604 | Pain in right leg | ✓ |
| M79.604 | Pain in right leg | ✓ |
| M79.605 | Pain in left leg | ✓ |
| M79.605 | Pain in left leg | ✓ |
| M79.606 | Pain in leg, unspecified | ✓ |
| M79.606 | Pain in leg, unspecified | ✓ |
| M79.609 | Pain in unspecified limb | ✓ |
| M79.609 | Pain in unspecified limb | ✓ |
| M79.621 | Pain in right upper arm | ✓ |
| M79.621 | Pain in right upper arm | ✓ |
| M79.622 | Pain in left upper arm | ✓ |
| M79.622 | Pain in left upper arm | ✓ |
| M79.629 | Pain in unspecified upper arm | ✓ |
| M79.629 | Pain in unspecified upper arm | ✓ |
| M79.631 | Pain in right forearm | ✓ |
| M79.631 | Pain in right forearm | ✓ |
| M79.632 | Pain in left forearm | ✓ |
| M79.632 | Pain in left forearm | ✓ |
| M79.639 | Pain in unspecified forearm | ✓ |
| M79.639 | Pain in unspecified forearm | ✓ |
| M79.641 | Pain in right hand | ✓ |
| M79.641 | Pain in right hand | ✓ |
| M79.642 | Pain in left hand | ✓ |
| M79.642 | Pain in left hand | ✓ |
| M79.643 | Pain in unspecified hand | ✓ |
| M79.643 | Pain in unspecified hand | ✓ |
| M79.644 | Pain in right finger(s) | ✓ |
| M79.644 | Pain in right finger(s) | ✓ |
| M79.645 | Pain in left finger(s) | ✓ |
| M79.645 | Pain in left finger(s) | ✓ |
| M79.646 | Pain in unspecified finger(s) | ✓ |
| M79.646 | Pain in unspecified finger(s) | ✓ |
| M79.651 | Pain in right thigh | ✓ |
| M79.651 | Pain in right thigh | ✓ |
| M79.652 | Pain in left thigh | ✓ |
| M79.652 | Pain in left thigh | ✓ |
| M79.659 | Pain in unspecified thigh | ✓ |
| M79.659 | Pain in unspecified thigh | ✓ |
| M79.661 | Pain in right lower leg | ✓ |
| M79.661 | Pain in right lower leg | ✓ |
| M79.662 | Pain in left lower leg | ✓ |
| M79.662 | Pain in left lower leg | ✓ |
| M79.669 | Pain in unspecified lower leg | ✓ |
| M79.669 | Pain in unspecified lower leg | ✓ |
| M79.671 | Pain in right foot | ✓ |
| M79.671 | Pain in right foot | ✓ |
| M79.672 | Pain in left foot | ✓ |
| M79.672 | Pain in left foot | ✓ |
| M79.673 | Pain in unspecified foot | ✓ |
| M79.673 | Pain in unspecified foot | ✓ |
| M79.674 | Pain in right toe(s) | ✓ |
| M79.674 | Pain in right toe(s) | ✓ |
| M79.675 | Pain in left toe(s) | ✓ |
| M79.675 | Pain in left toe(s) | ✓ |
| M79.676 | Pain in unspecified toe(s) | ✓ |
| M79.676 | Pain in unspecified toe(s) | ✓ |
| M79.A | Nontraumatic compartment syndrome | — |
| M79.A | Nontraumatic compartment syndrome | — |
| M79.A1 | Nontraumatic compartment syndrome of upper extremity | — |
| M79.A1 | Nontraumatic compartment syndrome of upper extremity | — |
| M79.A2 | Nontraumatic compartment syndrome of lower extremity | — |
| M79.A2 | Nontraumatic compartment syndrome of lower extremity | — |
| M79.A3 | Nontraumatic compartment syndrome of abdomen | ✓ |
| M79.A3 | Nontraumatic compartment syndrome of abdomen | ✓ |
| M79.A9 | Nontraumatic compartment syndrome of other sites | ✓ |
| M79.A9 | Nontraumatic compartment syndrome of other sites | ✓ |
| M79.A11 | Nontraumatic compartment syndrome of right upper extremity | ✓ |
| M79.A11 | Nontraumatic compartment syndrome of right upper extremity | ✓ |
| M79.A12 | Nontraumatic compartment syndrome of left upper extremity | ✓ |
| M79.A12 | Nontraumatic compartment syndrome of left upper extremity | ✓ |
| M79.A19 | Nontraumatic compartment syndrome of unspecified upper extremity | ✓ |
| M79.A19 | Nontraumatic compartment syndrome of unspecified upper extremity | ✓ |
| M79.A21 | Nontraumatic compartment syndrome of right lower extremity | ✓ |
| M79.A21 | Nontraumatic compartment syndrome of right lower extremity | ✓ |
| M79.A22 | Nontraumatic compartment syndrome of left lower extremity | ✓ |
| M79.A22 | Nontraumatic compartment syndrome of left lower extremity | ✓ |
| M79.A29 | Nontraumatic compartment syndrome of unspecified lower extremity | ✓ |
| M79.A29 | Nontraumatic compartment syndrome of unspecified lower extremity | ✓ |
Frequently asked questions
What is ICD-10-CM code M79?
M79 is an ICD-10-CM category covering Other and unspecified soft tissue disorders, not elsewhere classified. It contains 130 more specific diagnosis codes, 104 of which are billable.
Is M79 a billable code?
No — M79 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example M79.0 — Rheumatism, unspecified). 104 of the 130 codes under M79 are billable.
What codes fall under M79?
M79 includes M79.0, M79.0, M79.1, M79.1, M79.2, plus 125 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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