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D49 ICD-10-CM Code: Neoplasms of unspecified behavior

Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.

Official Registry Overview & Definition

Neoplasms of unspecified behavior is a non-billable ICD-10-CM category code (D49). A more specific billable subcode must be selected for claims submission.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for D49 in the official ICD-10-CM tabular list.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • 'growth' NOS
  • neoplasm NOS
  • new growth NOS
  • tumor NOS

Excludes2 — Not Included Here

Conditions not covered by this code, but which may be reported alongside it when both are present.

Frequently Compared Codes

The official Excludes notes on D49 name these codes. Each comparison page covers when the two can — or must not — be reported together.

Change history

No changes recorded for this code — unchanged since the FY2016 baseline of the change ledger.

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim.

Relationships & Classification

Other codes that name D49 or its code family, from the CMS ICD-10-CM tabular instructional notes. Tabular-note edges are stored at the code family level that carries each note.

13 Excludes1 notes: D37, D37-D48, D38, D39, D40, D41, D42, D43, D44, D45, D46, D47, D48.

15 Code First instructions across 5 chapters: D63.0, G13.0, G13.1, G32.8, G32.81, G53, G55, G63, G73.1, G73.3, G91.4, G99.2, I31.31, J91.0, M36.0.

Contextual Map

Every relationship of D49 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

  • C00-D49 — Chapter 2: Neoplasms (C00-D49) (C00-D49) [Hierarchy]
  • D49-D49 — Neoplasms of unspecified behavior [Hierarchy]

Excludes2

  • D37 — Neoplasm of uncertain behavior of oral cavity and digestive organs [Excludes2]: “neoplasms of uncertain behavior (D37-D44, D48)” · check together
  • D44 — Neoplasm of uncertain behavior of endocrine glands [Excludes2]: “neoplasms of uncertain behavior (D37-D44, D48)” · check together
  • D48 — Neoplasm of uncertain behavior of other and unspecified sites [Excludes2]: “neoplasms of uncertain behavior (D37-D44, D48)” · check together

Referenced by Excludes1 notes (13)

  • D37 — Neoplasm of uncertain behavior of oral cavity and digestive organs [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • D37-D48 — Neoplasms of uncertain behavior, polycythemia vera and myelodysplastic syndromes (D37-D48) [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • D38 — Neoplasm of uncertain behavior of middle ear and respiratory and intrathoracic organs [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • D39 — Neoplasm of uncertain behavior of female genital organs [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • D40 — Neoplasm of uncertain behavior of male genital organs [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • D41 — Neoplasm of uncertain behavior of urinary organs [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • D42 — Neoplasm of uncertain behavior of meninges [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • D43 — Neoplasm of uncertain behavior of brain and central nervous system [Excludes1]: “neoplasms of unspecified behavior (D49.-)” · check together
  • and 5 more

Referenced by Code First instructions (15)

  • D63.0 — Anemia in neoplastic disease [Code First]: “neoplasm (C00-D49)” · check together
  • G13.0 — Paraneoplastic neuromyopathy and neuropathy [Code First]: “underlying neoplasm (C00-D49)” · check together
  • G13.1 — Other systemic atrophy primarily affecting central nervous system in neoplastic disease [Code First]: “underlying neoplasm (C00-D49)” · check together
  • G32.8 — Other specified degenerative disorders of nervous system in diseases classified elsewhere [Code First]: “cerebral degeneration (due to) neoplasm (C00-D49)” · check together
  • G32.81 — Cerebellar ataxia in diseases classified elsewhere [Code First]: “cerebellar ataxia (in) neoplastic disease (paraneoplastic cerebellar degeneration) (C00-D49)” · check together
  • G53 — Cranial nerve disorders in diseases classified elsewhere [Code First]: “neoplasm (C00-D49)” · check together
  • G55 — Nerve root and plexus compressions in diseases classified elsewhere [Code First]: “neoplasm (C00-D49)” · check together
  • G63 — Polyneuropathy in diseases classified elsewhere [Code First]: “neoplasm (C00-D49)” · check together
  • and 7 more

Nearest codes (17)

  • D49.0 — Neoplasm of unspecified behavior of digestive system [Sibling]
  • D49.1 — Neoplasm of unspecified behavior of respiratory system [Sibling]
  • D49.2 — Neoplasm of unspecified behavior of bone, soft tissue, and skin [Sibling]
  • D49.3 — Neoplasm of unspecified behavior of breast [Sibling]
  • D49.4 — Neoplasm of unspecified behavior of bladder [Sibling]
  • D49.5 — Neoplasm of unspecified behavior of other genitourinary organs [Sibling]
  • D49.51 — Neoplasm of unspecified behavior of kidney [Sibling]
  • D49.511 — Neoplasm of unspecified behavior of right kidney [Sibling]
  • and 9 more

Frequently Asked Questions (FAQ) & Clinical Guidance

Can D49 be billed directly?

No. D49 (Neoplasms of unspecified behavior) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to D49 in its code family, with their registry titles.

  • D49.0 — Neoplasm of unspecified behavior of digestive system
  • D49.1 — Neoplasm of unspecified behavior of respiratory system
  • D49.2 — Neoplasm of unspecified behavior of bone, soft tissue, and skin
  • D49.3 — Neoplasm of unspecified behavior of breast
  • D49.4 — Neoplasm of unspecified behavior of bladder
  • D49.5 — Neoplasm of unspecified behavior of other genitourinary organs
  • D49.51 — Neoplasm of unspecified behavior of kidney
  • D49.511 — Neoplasm of unspecified behavior of right kidney
  • D49.512 — Neoplasm of unspecified behavior of left kidney
  • D49.519 — Neoplasm of unspecified behavior of unspecified kidney
  • D49.59 — Neoplasm of unspecified behavior of other genitourinary organ
  • D49.6 — Neoplasm of unspecified behavior of brain
  • D49.7 — Neoplasm of unspecified behavior of endocrine glands and other parts of nervous system
  • D49.8 — Neoplasm of unspecified behavior of other specified sites
  • D49.81 — Neoplasm of unspecified behavior of retina and choroid
  • D49.89 — Neoplasm of unspecified behavior of other specified sites
  • D49.9 — Neoplasm of unspecified behavior of unspecified site